I don't understand the issue with 'not having the pictures' mentioned in the other reviews. Why wouldn't you USE YOUR OWN PHOTOS?! Isn't that the point of LEARNING?
I have used my own images while following along with the book and have learned 100% more than I would have by simply reading the book and looking at the authors photographs.
Also, each section does go through the processes step by step. Open your photos, chose the one you want to work with and follow along with each step in the book. It's pretty damn easy!
This is an excellent book for those who comprehend that one learns through doing.