This book is lovely. As a second book about Clojure it propels you from basic understanding through to deep understanding. It doesn't exhaustively cover the library for Clojure but it covers the thought process behind the language and definitely exhorts a better style of development. The information flow doesn't let up for all the chapters and as such you feel like you've learned an immense amount aas you move through the book. Having said that the conclusion is pretty much, we've stopped writing here's a closing paragraph. Which is odd considering the rest of the book.