I bought the Kindle addition - for $10. I was concerned that Kindle could not do justice to a photography book. I was wrong. The Kindle addition is just fine. The figures showing camera functionality were more than sufficiently rendered on the Kindle. True, I did not get to fully appreciate the author's wonderful seagull picture - but that's that's what you loose on the Kindle resolution. In terms of the educational content, I don't think much if any was lost. So, if you have a Kindle - do buy the Kindle addition of this book.
On the book, my comments are similar to many others. I've owned my D700 for about a year, but I wasn't using its full potential. This wonderful book gave me a whole new camera to explore! Thanks!