Well, I don’t own the extended version of CS3 so there’s stuff in there I can’t use. I’ve been a Photoshop user since version 3 so a lot of the stuff in there is redundant for me but I’m quite satisfied with it when I do need information on the CS3 updated material. The book itself is 1,113 pages not including the index so there really isn’t much that can be left out. I wouldn't exactly call it Saturday night cozy reading.