Cyber Warfare - Truth, Tactics, and Strategies. Strategic concepts and truths to help you and your organization survive on the battleground of cyber warfare

Dr. Chase Cunningham

The era of cyber warfare is now upon us. What we do now and how we determine what we will do in the future is the difference between whether our businesses live or die and whether our digital self survives the digital battlefield. Cyber Warfare – Truth, Tactics, and Strategies takes you on a journey through the myriad of cyber attacks and threats that are present in a world powered by AI, big data, autonomous vehicles, drones video, and social media.Dr. Chase Cunningham uses his military background to provide you with a unique perspective on cyber security and warfare. Moving away from a reactive stance to one that is forward-looking, he aims to prepare people and organizations to better defend themselves in a world where there are no borders or perimeters. He demonstrates how the cyber landscape is growing infinitely more complex and is continuously evolving at the speed of light.The audiobook not only covers cyber warfare, but it also looks at the political, cultural, and geographical influences that pertain to these attack methods and helps you understand the motivation and impacts that are likely in each scenario.Cyber Warfare – Truth, Tactics, and Strategies is as real-life and up-to-date as cyber can possibly be, with examples of actual attacks and defense techniques, tools. and strategies presented for you to learn how to think about defending your own systems and data.

Cloud Auditing Best Practices. Perform Security and IT Audits across AWS, Azure, and GCP by building effective cloud auditing plans

Shinesa Cambric, Michael Ratemo

As more and more companies are moving to cloud and multi-cloud environments, being able to assess the compliance of these environments properly is becoming more important. But in this fast-moving domain, getting the most up-to-date information is a challenge—so where do you turn?Cloud Auditing Best Practices has all the information you’ll need. With an explanation of the fundamental concepts and hands-on walk-throughs of the three big cloud players, this audiobook will get you up to speed with cloud auditing before you know it.After a quick introduction to cloud architecture and an understanding of the importance of performing cloud control assessments, you’ll quickly get to grips with navigating AWS, Azure, and GCP cloud environments. As you explore the vital role an IT auditor plays in any company’s network, you'll learn how to successfully build cloud IT auditing programs, including using standard tools such as Terraform, Azure Automation, AWS Policy Sentry, and many more.You’ll also get plenty of tips and tricks for preparing an effective and advanced audit and understanding how to monitor and assess cloud environments using standard tools.By the end of this audiobook, you will be able to confidently apply and assess security controls for AWS, Azure, and GCP, allowing you to independently and effectively confirm compliance in the cloud.

Cloud Identity Patterns and Strategies. Design enterprise cloud identity models with OAuth 2.0 and Azure Active Directory

Giuseppe Di Federico, Fabrizio Barcaroli

Identity is paramount for every architecture design, making it crucial for enterprise and solutions architects to understand the benefits and pitfalls of implementing identity patterns. However, information on cloud identity patterns is generally scattered across different sources and rarely approached from an architect’s perspective, and this is what Cloud Identity Patterns and Strategies aims to solve, empowering solutions architects to take an active part in implementing identity solutions.Throughout this audiobook, you’ll cover various theoretical topics along with practical examples that follow the implementation of a standard de facto identity provider (IdP) in an enterprise, such as Azure Active Directory. As you progress through the chapters, you’ll explore the different factors that contribute to an enterprise's current status quo around identities and harness modern authentication approaches to meet specific requirements of an enterprise. You’ll also be able to make sense of how modern application designs are impacted by the company’s choices and move on to recognize how a healthy organization tackles identity and critical tasks that the development teams pivot on.By the end of this audiobook, you’ll be able to breeze through creating portable, robust, and reliable applications that can interact with each other.

The Kaggle Book. Data analysis and machine learning for competitive data science

Konrad Banachewicz, Luca Massaron, Anthony Goldbloom

Millions of data enthusiasts from around the world compete on Kaggle, the most famous data science competition platform of them all. Participating in Kaggle competitions is a surefire way to improve your data analysis skills, network with an amazing community of data scientists, and gain valuable experience to help grow your career.The first audiobook of its kind, The Kaggle Book assembles in one place the techniques and skills you'll need for success in competitions, data science projects, and beyond. Two Kaggle Grandmasters walk you through modeling strategies you won't easily find elsewhere, and the knowledge they've accumulated along the way. As well as Kaggle-specific tips, you'll learn more general techniques for approaching tasks based on image, tabular, textual data, and reinforcement learning. You'll design better validation schemes and work more comfortably with different evaluation metrics.Whether you want to climb the ranks of Kaggle, build some more data science skills, or improve the accuracy of your existing models, this audiobook is for you.

Mastering OAuth 2.0. Create powerful applications to interact with popular service providers such as Facebook, Google, Twitter, and more by leveraging the OAuth 2.0 Authorization Framework

Charles Bihis, Charles Bihis

OAuth 2.0 is a powerful authentication and authorization framework that has been adopted as a standard in the technical community. Proper use of this protocol will enable your application to interact with the world's most popular service providers, allowing you to leverage their world-class technologies in your own application. Want to log your user in to your application with their Facebook account? Want to display an interactive Google Map in your application? How about posting an update to your user's LinkedIn feed? This is all achievable through the power of OAuth.With a focus on practicality and security, this book takes a detailed and hands-on approach to explaining the protocol, highlighting important pieces of information along the way.At the beginning, you will learn what OAuth is, how it works at a high level, and the steps involved in creating an application. After obtaining an overview of OAuth, you will move on to the second part of the book where you will learn the need for and importance of registering your application and types of supported workflows. You will discover more about the access token, how you can use it with your application, and how to refresh it after expiration.By the end of the book, you will know how to make your application architecture robust. You will explore the security considerations and effective methods to debug your applications using appropriate tools. You will also have a look at special considerations to integrate with OAuth service providers via native mobile applications. In addition, you will also come across support resources for OAuth and credentials grant.

Securing Industrial Control Systems and Safety Instrumented Systems. A practical guide for safeguarding mission and safety critical systems

Jalal Bouhdada, Marco Ayala

As modern process facilities become increasingly sophisticated and vulnerable to cyber threats, securing critical infrastructure is more crucial than ever. This book offers an indispensable guide to industrial cybersecurity and Safety Instrumented Systems (SIS), vital for maintaining the safety and reliability of critical systems and protecting your operations, personnel, and assets.Starting with SIS design principles, the book delves into the architecture and protocols of safety networks. It provides hands-on experience identifying vulnerabilities and potential attack vectors, exploring how attackers might target SIS components. You’ll thoroughly analyze Key SIS technologies, threat modeling, and attack techniques targeting SIS controllers and engineer workstations. The book shows you how to secure Instrument Asset Management Systems (IAMS), implement physical security measures, and apply integrated risk management methodologies. It also covers compliance with emerging cybersecurity regulations and industry standards worldwide.By the end of the book, you’ll have gained practical insights into various risk assessment methodologies and a comprehensive understanding of how to effectively protect critical infrastructure.

The DevOps Career Handbook. The ultimate guide to pursuing a successful career in DevOps

John Knight, Nate Swenson

DevOps is a set of practices that make up a culture, and practicing DevOps methods can make developers more productive and easier to work with. The DevOps Career Handbook is filled with hundreds of tips and tricks from experts regarding every step of the interview process, helping you save time and money by steering clear of avoidable mistakes.You’ll learn about the various career paths available in the field of DevOps, before acquiring the essential skills needed to begin working as a DevOps professional. If you are already a DevOps engineer, this audiobook will help you to gain advanced skills to become a DevOps specialist. After getting to grips with the basics, you'll discover tips and tricks for preparing your resume and online profiles and find out how to build long-lasting relationships with the recruiters. Finally, you'll read through interviews which will give you an insight into a career in DevOps from the viewpoint of individuals at different career levels.By the end of this DevOps audiobook, you’ll gain a solid understanding of what DevOps is, the various DevOps career paths, and how to prepare for your interview.

Introduction to Software Architecture. Get familiar with the basics of software architecture and design concepts

Adrian Ostrowski, Piotr Gaczkowski

Software architecture refers to the high-level design of complex applications. It is evolving just like the languages we use, but there are architectural concepts and patterns that you can learn to write high-performance apps in a high-level language without sacrificing readability and maintainability.If you want to become a software architect, this audiobook will get you up to speed with architectural concepts, including established patterns and rising trends. It will also demonstrate effective approaches to its design and documentation. Next, you'll discover the design concepts involved in application architecture and the patterns in software development. We’ll introduce you to a few concepts and fallacies related to architectural design and show you when to use the said patterns.

Software Test Design. Write comprehensive test plans to uncover critical bugs in web, desktop, and mobile apps

Simon Amey

Software Test Design details best practices for testing software applications and writing comprehensive test plans. Written by an expert with over twenty years of experience in the high-tech industry, this guide will provide you with training and practical examples to improve your testing skills.Thorough testing requires a thorough understanding of the functionality under test, informed by exploratory testing and described by a detailed functional specification. This audiobook is divided into three sections, the first of which will describe how best to complete those tasks to start testing from a solid foundation.Armed with the feature specification, functional testing verifies the visible behavior of features by identifying equivalence partitions, boundary values, and other key test conditions. This section explores techniques such as black- and white-box testing, trying error cases, finding security weaknesses, improving the user experience, and how to maintain your product in the long term.The final section describes how best to test the limits of your application. How does it behave under failure conditions and can it recover? What is the maximum load it can sustain? And how does it respond when overloaded?By the end of this audiobook, you will know how to write detailed test plans to improve the quality of your software applications.

Intelligent Workloads at the Edge. Deliver cyber-physical outcomes with data and machine learning using AWS IoT Greengrass

Indraneel Mitra, Ryan Burke

The Internet of Things (IoT) has transformed how people think about and interact with the world. The ubiquitous deployment of sensors around us makes it possible to study the world at any level of accuracy and enable data-driven decision-making anywhere. Data analytics and machine learning (ML) powered by elastic cloud computing have accelerated our ability to understand and analyze the huge amount of data generated by IoT. Now, edge computing has brought information technologies closer to the data source to lower latency and reduce costs.This book will teach you how to combine the technologies of edge computing, data analytics, and ML to deliver next-generation cyber-physical outcomes. You’ll begin by discovering how to create software applications that run on edge devices with AWS IoT Greengrass. As you advance, you’ll learn how to process and stream IoT data from the edge to the cloud and use it to train ML models using Amazon SageMaker. The book also shows you how to train these models and run them at the edge for optimized performance, cost savings, and data compliance.By the end of this IoT book, you’ll be able to scope your own IoT workloads, bring the power of ML to the edge, and operate those workloads in a production setting.

BBC Micro:bit in Practice. A hands-on guide to building creative real-life projects with MicroPython and the BBC Micro:bit

Ashwin Pajankar, Abhishek Sharma, Sandeep Saini

This book is a one-stop guide for learning BBC Micro:bit with MicroPython, exploring many hardware components and programming techniques to provide detailed insights into developing practical applications with the Micro:bit. It will also show you how hardware components can be manipulated using a combination of Micro:bit and MicroPython for developing practical projects. BBC Micro:bit in Practice will help you gain a holistic understanding of the BBC Micro:bit platform and MicroPython programming, guiding you through mini projects aimed at developing practical knowledge of circuit design and writing programs. You’ll learn how to write programs for working with built-in LEDs and buttons, interfacing external LEDs, buttons, motors, buzzers, and much more. You’ll also work with built-in radio, speakers, accelerometer, and a compass. You’ll dive into concepts related to the Micro:bit filesystem, interfacing external displays, and working with libraries in detail before exploring sewable circuits and wearable technology.After reading this Micro:bit book, you’ll understand how to apply principles in electronics and MicroPython to create interesting real-life projects from scratch.

Sustainable IT Playbook for Technology Leaders. Design and implement sustainable IT practices and unlock sustainable business opportunities

Niklas Sundberg, Hélene Barnekow

We are at a critical point in human history. Humanity is under threat, but all is not lost. We can take action! But how?Sustainable IT Playbook for Technology Leaders will show you how. It will walk you through the construction and implementation of a sustainable IT strategy and enable you to do your bit for the future of mankind.The book is split into three parts. Part I details the “why” and the clear and present danger that humanity faces today: the climate crisis. How did we get here, what are the immediate threats, what are the planetary boundaries that we need to peel back to safe levels, and what impact does IT have on society at large? Part II will focus on the what.” It examines the nitty-gritty details of what we can do to unlock significant returns on sustainable investments toward a more sustainable future. Part III, the final part of the book, focuses on the “how.” How do you turn your ideas into action? What do you need to do to establish your baseline and your direction of travel towards your objective? This part provides tangible case studies and explains how you can start your journey today to begin delivering global and impactful objectives.By the end of this book, you’ll be able to plan, implement, and communicate a sustainable IT strategy and set yourself apart as a progressive technology leader.

Journey to Become a Google Cloud Machine Learning Engineer. Build the mind and hand of a Google Certified ML professional

Dr. Logan Song

This book aims to provide a study guide to learn and master machine learning in Google Cloud: to build a broad and strong knowledge base, train hands-on skills, and get certified as a Google Cloud Machine Learning Engineer.The book is for someone who has the basic Google Cloud Platform (GCP) knowledge and skills, and basic Python programming skills, and wants to learn machine learning in GCP to take their next step toward becoming a Google Cloud Certified Machine Learning professional.The book starts by laying the foundations of Google Cloud Platform and Python programming, followed the by building blocks of machine learning, then focusing on machine learning in Google Cloud, and finally ends the studying for the Google Cloud Machine Learning certification by integrating all the knowledge and skills together.The book is based on the graduate courses the author has been teaching at the University of Texas at Dallas. When going through the chapters, the reader is expected to study the concepts, complete the exercises, understand and practice the labs in the appendices, and study each exam question thoroughly. Then, at the end of the learning journey, you can expect to harvest the knowledge, skills, and a certificate.

CompTIA CASP+ CAS-004 Certification Guide. Develop CASP+ skills and learn all the key topics needed to prepare for the certification exam

Mark Birch

CompTIA Advanced Security Practitioner (CASP+) ensures that security practitioners stay on top of the ever-changing security landscape. The CompTIA CASP+ CAS-004 Certification Guide offers complete, up-to-date coverage of the CompTIA CAS-004 exam so you can take it with confidence, fully equipped to pass on the first attempt.Written in a clear, succinct way with self-assessment questions, exam tips, and mock exams with detailed explanations, this audiobook covers security architecture, security operations, security engineering, cryptography, governance, risk, and compliance. You'll begin by developing the skills to architect, engineer, integrate, and implement secure solutions across complex environments to support a resilient enterprise. Moving on, you'll discover how to monitor and detect security incidents, implement incident response, and use automation to proactively support ongoing security operations. The audiobook also shows you how to apply security practices in the cloud, on-premises, to endpoints, and to mobile infrastructure. Finally, you'll understand the impact of governance, risk, and compliance requirements throughout the enterprise.By the end of this CASP study guide, you'll have covered everything you need to pass the CompTIA CASP+ CAS-004 certification exam and have a handy reference guide.

The Machine Learning Solutions Architect Handbook. Create machine learning platforms to run solutions in an enterprise setting

David Ping

When equipped with a highly scalable machine learning (ML) platform, organizations can quickly scale the delivery of ML products for faster business value realization. There is a huge demand for skilled ML solutions architects in different industries, and this handbook will help you master the design patterns, architectural considerations, and the latest technology insights you’ll need to become one.You’ll start by understanding ML fundamentals and how ML can be applied to solve real-world business problems. Once you've explored a few leading problem-solving ML algorithms, this book will help you tackle data management and get the most out of ML libraries such as TensorFlow and PyTorch.Using open source technology such as Kubernetes/Kubeflow to build a data science environment and ML pipelines will be covered next, before moving on to building an enterprise ML architecture using Amazon Web Services (AWS). You’ll also learn about security and governance considerations, advanced ML engineering techniques, and how to apply bias detection, explainability, and privacy in ML model development. And finally, you'll get acquainted with AWS AI services and their applications in real-world use cases.By the end of this audiobook, you’ll be able to design and build an ML platform to support common use cases and architecture patterns like a true professional.

Internet of Things for Smart Buildings. Leverage IoT for smarter insights for buildings in the new and built environments

Harry G. Smeenk, Marc Petock

Imagine working in a building with smart features and tenant applications that allow you to monitor, manage, and control every aspect of your user experience. Internet of Things for Smart Buildings is a comprehensive guide that will help you achieve that with smart building architecture, ecosystems, technologies, and key components that create a smart building.In this audiobook, you’ll start by examining all the building systems and applications that can be automated with IoT devices. You’ll learn about different apps to improve efficiency, reduce consumption, and improve occupant satisfaction. You’ll explore IoT sensors, devices, computing platforms, analytics software, user interfaces, and connectivity options, along with common challenges you might encounter while developing the architecture.You’ll also discover how to piece different components together to develop smart buildings with the help of use cases and examples and get to grips with the various IoT stacks. After finding out where to start developing the requirements for your project, you’ll uncover a recommended methodology to understand your current building systems and a process for determining what needs to be modified, along with new technology requirements.By the end of the audiobook, you’ll be able to design and build your own smart building initiative, turning your city into a smart city with one building at a time.

Mastering Palo Alto Networks. Build, configure, and deploy network solutions for your infrastructure using features of PAN-OS - Second Edition

Tom Piens aka 'reaper', Kim Wens aka 'kiwi'

Palo Alto Networks integrated platform makes it easy to manage network and cloud security along with endpoint protection and a wide range of security services.This audiobook is a guide to configure firewalls and deploy them in your network infrastructure. You will see how to quickly set up, configure and understand the technology, and troubleshoot any issues that may occur. This audiobook will serve as your go-to reference for everything from setting up to troubleshooting complex issues. You will learn your way around the web interface and command-line structure, understand how the technology works so you can confidently predict the expected behavior, and successfully troubleshoot any anomalies you may encounter. Finally, you will see how to deploy firewalls in a cloud environment, and special or unique considerations when setting them to protect resources.By the end of this audiobook, for your configuration setup you will instinctively know how to approach challenges, find the resources you need, and solve most issues efficiently.This is an abridged version. This condensed version aims to get you all the essential knowledge offered by our book - Mastering Palo Alto Networks in an easy-to-digest format

Learn Power BI. A comprehensive, step-by-step guide for beginners to learn real-world business intelligence - Second Edition

Greg Deckler

To succeed in today's transforming business world, organizations need business intelligence capabilities to make smarter decisions faster than ever before. This updated second edition of Learn Power BI takes you on a journey of data exploration and discovery, using Microsoft Power BI to ingest, cleanse, and organize data in order to unlock key business insights that can then be shared with others.This newly revised and expanded edition of Learn Power BI covers all of the latest features and interface changes and takes you through the fundamentals of business intelligence projects, how to deploy, adopt, and govern Power BI within your organization, and how to leverage your knowledge in the marketplace and broader ecosystem that is Power BI. As you progress, you will learn how to ingest, cleanse, and transform your data into stunning visualizations, reports, and dashboards that speak to business decision-makers.By the end of this Power BI book, you will be fully prepared to be the data analysis hero of your organization – or even start a new career as a business intelligence professional.

PrimeFaces Beginner's Guide. The perfect introduction to PrimeFaces, this tutorial will take you step by step through all the great features, ranging from form-creation to sophisticated navigation systems. All you need are some basic JSF and jQuery skills

K. Siva Prasad Reddy, Siva Prasad Reddy Katamreddy

PrimeFaces is a lightweight UI component framework for JSF based applications. PrimeFaces is very easy to use because it comes as a single JAR file and requires no mandatory XML configuration. It provides more than 100 UI Components and an in-built AJAX support. It also provides theme support for UI components with more than 30 themes out-of-the-box. With PrimeFaces, developers can create rich user interfaces very easily.PrimeFaces Beginners Guide is a practical, hands-on guide that provides you with clear step-by-step exercises,that will help you to learn and explore the features of PrimeFaces.PrimeFaces Beginners Guide starts by showing you how to install PrimeFaces, create sample forms, and perform validations and then looks at various commonly used PrimeFaces utility components. Next, you will look into various basic text input components like form controls, Calendar, AutoComplete, and Rich Text Editor. Then you will learn about advanced UI components such as DataTables, panels, menus,and charts. Throughout the chapters we will be building a sample web application using PrimeFaces progressively that will give you a hands-on experience on using PrimeFaces effectively.You will learn how to create complex layouts using accordion panels, tab views, sophisticated menu navigations, breadcrumbs and much more. You will also learn how to display data using DataTable with pagination, filters, and lazy loading, and how to export data to Excel or PDF features. You will learn how to represent data in various formats like trees, charts, and TagCloud. You will also learn how to build an application supporting multiple themes.With this PrimeFaces Beginner's Guide , you will learn how to use PrimeFaces easily and effectively.

YARN Essentials. A comprehensive, hands-on guide to install, administer, and configure settings in YARN

Amol Fasale, Nirmal Kumar

Fundamentals of Analytics Engineering. An introduction to building end-to-end analytics solutions

Dumky De Wilde, Fanny Kassapian, Jovan Gligorevic, Juan Manuel Perafan, ...

Written by a team of 7 industry experts, Fundamentals of Analytics Engineering will introduce you to everything from foundational concepts to advanced skills to get started as an analytics engineer.After conquering data ingestion and techniques for data quality and scalability, you’ll learn about techniques such as data cleaning transformation, data modeling, SQL query optimization and reuse, and serving data across different platforms. Armed with this knowledge, you will implement a simple data platform from ingestion to visualization, using tools like Airbyte Cloud, Google BigQuery, dbt, and Tableau. You’ll also get to grips with strategies for data integrity with a focus on data quality and observability, along with collaborative coding practices like version control with Git. You’ll learn about advanced principles like CI/CD, automating workflows, gathering, scoping, and documenting business requirements, as well as data governance.By the end of this book, you’ll be armed with the essential techniques and best practices for developing scalable analytics solutions from end to end.

Mac Application Development by Example: Beginner's Guide. A comprehensive and practical guide, for absolute beginners, to developing your own App for Mac OS X book and

Robert Wiebe

It's never been more important to have the ability to develop an App for Mac OS X. Whether it's a System Preference, a business app that accesses information in the Cloud, or an application that uses multi-touch or uses a camera, you will have a solid foundation in app development to get the job done.Mac Application Development by Example takes you through all the aspects of using the Xcode development tool to produce complete working apps that cover a broad range of topics. This comprehensive book on developing applications covers everything a beginner needs to know and demonstrates the concepts using examples that take advantage of some of the most interesting hardware and software features available.You will discover the fundamental aspects of OS X development while investigating innovative platform features to create a final product which take advantage of the unique aspects of OS X.Learn how to use Xcode tools to create and share Mac OS X apps. Explore numerous OS X features including iCloud, multi-touch trackpad, and the iSight camera.This book provides you with an illustrated and annotated guide to bring your idea to life using fundamental concepts that work on Mac.

Microsoft Silverlight 4 Data and Services Cookbook. Over 80 practical recipes for creating rich, data-driven business applications in Silverlight

Kevin Dockx, Gill Cleeren

Microsoft Silverlight is a programmable web browser plugin that enables features including animation, vector graphics, and audio-video playback – features that characterize Rich Internet Applications. However, Silverlight is a great (and growing) Line-Of-Business platform and is increasingly being used to build data-driven business applications. Silverlight Data Services enable efficient access to your data, allowing you to draw on multiple sources of data and solve particular data problems. There is very little existing material that demonstrates how to build data-driven solutions with the platform. Silverlight 3 made a big step into Line-Of-Business data services and Silverlight 4 builds further upon this. This book will enable .NET developers to get their finger on the pulse of data-driven business applications in Silverlight.This book is not a general Silverlight 3/4 overview book; it is uniquely aimed at developers who want to build data-driven applications. It focuses on showing .NET developers how to interact with, and handle multiple sources of data in Silverlight business applications, and how to solve particular data problems following a practical hands-on approach, using real-world recipes. It is a practical cookbook that teaches you how to build data-rich business applications with Silverlight that draw on multiple sources of data. Most of the covered features work both in Silverlight 3 and 4. However, we cover some that are specific for Silverlight 4, which will therefore not work with Silverlight 3. Where this is the case, it is clearly indicated.Packed with reusable, real-world recipes, the book begins by introducing you to general principles when programming Silverlight. It then dives deep into the world of data services, covering all the options available to access data and communicate with services to get the most out of data in your Silverlight business applications, whilst at the same time providing a rich user experience. Chapters cover data binding, data controls, the concepts of talking to services, communicating with WCF, ASMX and REST services, and much more.By following the practical recipes in this book, which are of varying difficulty levels, you will learn the concepts needed to create data-rich business applications—from the creation of a Silverlight application, to displaying data in the Silverlight application and upgrading your existing applications to use Silverlight. Each recipe covers a data services topic, going from the description of the problem, through a conceptual solution to a solution containing sample code.

Modernizing Legacy Applications in PHP. Make your legacy applications organized, testable and free of globals

Paul Jones

Have you noticed that your legacy PHP application is composed of page scripts placed directly in the document root of the web server? Or, do your page scripts, along with any other classes and functions, combine the concerns of model, view, and controller into the same scope? Is the majority of the logical flow incorporated as include files and global functions rather than class methods? Working with such a legacy application feels like dragging your feet through mud, doesn’t it?This book will show you how to modernize your application in terms of practice and technique, rather than in terms of using tools such as frameworks and libraries, by extracting and replacing its legacy artifacts. We will use a step-by-step approach, moving slowly and methodically, to improve your application from the ground up. We’ll show you how dependency injection can replace both the new and global dependencies. We’ll also show you how to change the presentation logic to view files and the action logic to a controller. Moreover, we’ll keep your application running the whole time. Each completed step in the process will keep your codebase fully operational with higher quality. When we are done, you will be able to breeze through your code like the wind. Your code will be autoloaded, dependency-injected, unit-tested, layer-separated, and front-controlled. Most of the very limited code we will add to your application is specific to this book. We will be improving ourselves as programmers, as well as improving the quality of our legacy application.