I loved this book; it is very well written. But I have friends who bought the electronic copy of the book directly from the publisher, and the layout is much better. The many sidebars in the original text appear in the main body of the Kindle edition, and the internal links don't often work, at least on my iPad. Tthe publisher edition costs more, but it doesn't come laden with digital rights restrictions. If you don't mind spending a few bucks more, I'd recommend buying the electronic copy directly from the publisher.