In this book key contributors to the JavaParser library teach you how to programmatically analyse, transform and generate your java code base.
The first part of the book aims to introduce you to the basics of the library before the team take you through a more detailed look at some of their favourite applications of the library.
This book is very-very short, even for ebook. It gives only a very basic overview of JavaParser without more advanced examples.
At the same time, let's remember the purpose of this book - it's to support open-source JavaParser developers. You can get this book for free, but I encourage you to actually buy it.