I now have in my possession all three books…although the last was an article in Horizon (May 1960, Volume II, No. 5) by Ada Louise Huxtable.

Imagineers said that when they were planning Tomorrowland, Walt would carry around books on city planning and mutter about traffic, noise, and neon signs, but he kept three volumes in his office to which he frequently referred: Garden Cities of Tomorrow by Sir Ebenezer Howard, which promoted a vision of a more pastoral urban life; and The Heart of our Cities and Out of a Fair, a City, both by an architect and mall designer named Victor Gruen, who urged the reconceptualization of the city as more ordered, rational, and humane. -Neal Gabler