In later chapters, Eliot goes into how to install, run, and make basic customizations to the toolkit. Even though I’ve created lots of plugins, I’m certain I’ll come back to the sections where he explains extension points and best practices for creating ant targets. Part 2 builds on the foundation set in part 1, layering in complexities like specialization, compound maps, vocabularies, reuse, and more. (I’m still trying to wrap my brain around Chapter 8 on linking and addressing.)
In short, I wish I’d had this book when I started out implementing DITA four years ago. I’m certainly glad I have it now.