The content and screenshots in this book are based on SharePoint 2013. The techniques shown can also be applied to SharePoint 2016.
Chapter 1: Setting Up Your Environment
Chapter 2: Introduction to SharePoint Front End Solutions
Chapter 3: Content Editor and Script Editor Web Parts
Chapter 6: Working With Data Using the REST API
Chapter 8: Using JSLink to Style List Web Parts
Chapter 9: Content Search Web Part and Display Templates
"The book is rather easy to read, starting with using of SharePoint browser-based tools. ... The book is informative and well written, if you follow it you would be able to customize a SharePoint site." (Vitosh Academy, vitoshacademy.com, January, 2016)