I read a lot of Disney World guides. A lot. So I think I can say, with some authority, that The Thinking Fan's Guide is not your average travel guide. You won't find information about local hotels, or how to best use your money. Instead, Wallace has filled this book with analyses of virtually every attraction in the Magic Kingdom. You'll get a complete history of the attraction (including prior attractions that filled the same space), how the attraction fits into the overall park, and essentially everything else that you can fit into a few pages. I say attractions, because Wallace even gives this treatment to frequently ignored non-rides, like the shooting gallery in Frontierland. Keep in mind that book was written before the Fantasyland expansion was fully open, so there is a fair bit of the new stuff that just couldn't be covered.
I'm an admitted Disneyphile, so this book was right up my alley. It could be read by somebody new to the park, sure, but I doubt they'd get quite as much out of it as an obsessive like me. Like the very similar [b:The Imagineering Field Guide to Magic Kingdom at Walt Disney World|346725|The Imagineering Field Guide to Magic Kingdom at Walt Disney World|Alex Wright|http://d202m5krfqbpi5.cloudfront.net/books/1360566055s/346725.jpg|337024], this would be a great book to lug around the park with you. Luckily, it wouldn't weigh you down to much. The title implies that there will be other guides in the series, covering the other parks at Walt Disney World. I'll be all over those, if they see the light of day.