This is a wonderful book for learning composition. I felt that Ian Roberts broke the concepts down and explained them well. He discusses different compositional forms with examples and explains whey they work.
There are a lot of examples from his own work, discussing why it works and what some subtle changes could do to it.
The book includes a dvd. The technical quality of the DVD is poor, I had to turn the sound on my tv almost to maximum to hear it adequately, and the dvd buzzed in the player.
But after that, the content was excellent. He showed most of the pictures in the book, and showed them with alterations while discussing what these alterations do to the eye movement. Then he goes through the same video again without the voice so you can see and feel the effects yourself. The dvd is an excellent addition to the book.