This book is organized as an engineering reference guide for DevOps, presented in five parts as follows: Part I: What Is Engineering DevOps and Why Is It Important? is organized into three chapters. Chapter 1, "What is Engineering DevOps?," explains engineering concepts and terms used in this book that have proven to work with many clients I have encountered during my consulting experiences. My depiction of a DevOps Engineering Blueprint is presented for as a useful, practical "big-picture" reference for discussing engineering the major parts of DevOps. Chapter 2, "Nine Pillars of DevOps," describes a classification of DevOps practices that I have found to be useful characterization of DevOps engineering practices that can be readily applied when engineering DevOps implementations. Chapter 3, "Why Is Engineering DevOps Important?," explains the benefits of taking an engineering approach to engineering DevOps. Part II: Engineering People, Processes and Technologies for DevOps provides a comprehensive explanation of recommended engineering practices for the higher levels of the DevOps Engineering Blueprint. DevOps transformations are not normally understood or applied using strict engineering principles. Engineering practices are presented in nine chapters as follows: "How Should DevOps Be Engineered?" includes a discussion of DevOps Engineering Maturity Levels for each of the Three Dimensions (People, Process, and Technology), Twenty-Seven DevOps Engineering Critical Success Factors, and Lean DevOps Value-Stream Pipeline Engineering. I describe recommended engineering practices for the top layers of the DevOps Engineering Blueprint in the next chapters, which include "Value-Stream Management (VSM)," "Application Release Automation (ARA)," "Version Management," "Continuous Security (a.k.a. DevSecOps)," "Service Catalog," "Governance," "Site Reliability Engineering (SRE)," "Disaster Mitigation," and "Recovery." Part III: Engineering Applications, Pipelines, and Infrastructures Engineered for DevOps provides a comprehensive explanation of recommended engineering practices for the lower levels of the DevOps Engineering Blueprint, presented in six chapters as follows: "DevOps Applications Engineering," "CI/CD Pipelines Engineering," "Elastic Infrastructure Engineering," "Continuous Test Engineering," "Continuous Monitoring Engineering," and "Continuous Delivery and Deployment Engineering."Part IV: DevOps Seven-Step Transformation Engineering Blueprint provid