This book would have benefited of better editing and review. For example, the meanings of the words “Tae” and “Kwon” are all wrong. The “Note to Readers” on the Preface (page viii) says “Tae” meaning fist, “Kwon” meaning foot. This righted up on page 5. Also, this book is full of typos. :/ e.g., captions on some photos in page 70.
This is book is too shallow. The key ideas in this book would take no more than half of the pages in the book. A great deal of the content is basically generic agile development ideas you could find better explained in other books.