A copy of Walt Disney's Story Land ... a 300+ page book published by Golden Books/Western Publishing. The copy I have is 8th printing, 1971.
A few months ago I found a souvenir picture book from the first time my parents and I visited WDW in 1972. It's about 12" x 12" titled "The Story of Walt Disney World." It has a lot of great pictures showing the conception and building of WDW. What's interesting is that at the time they had planned an Asian themed resort where the Grand Floridian now stands, a Venetian resort between the TTC and the Contemporary, and a Persian resort north of the Comtemporary.