Planet Explorers Walt Disney World: A Guidebook for Kids
The park is organized in to different areas in this book, each with its own list of restaurants, rides and attractions. Schaefer offers a wealth of good information about each ride, having devised a way to catalog them for kids of all ages (S=scary, D=dark, A=awesome, T=thrilling, W=wet). She also posts height restrictions so you can skip the ones your kids are too small to ride without much drama.
Links to the other two reviews are here for NYC and here for Chicago. The books all follow a similar format, so the reviews are quite similar as well. That being said, if you are planning a family vacation anytime soon, Laura has written Planet Explorer books for Disneyland, Disney cruises and Philadelphia as well as the three I reviewed. Do yourself a favor and find one that fits your travel needs.