The Wimpy Kid Do-It-Yourself Book: Extended Edition (published after Wimpy Kid Movie Diary 2 and before Cabin Fever) is the same book as the first Do-It-Yourself Book, but with extra 60 pages and 16 more full-color comics.
The Wimpy Kid Movie Diary 3: Dog Days is the same book that covers how the first film and second film were made, but also stills from the third film Dog Days, and how this film was made.