One very educational set of books, though written in 2009, are the Imagineering Field Guides; there’s one for each of the four parks (plus one for Disneyland). These guides aren’t about practical tourist information; rather, they cover the stories behind every area in each park and feature great concept images (some rarely seen), behind-the-scenes details, and tricks of the Imagineering trade. But one of his guiding principles was to “keep moving forward”, and Disney World has done just that, batman costume becoming the largest and most popular theme park resort complex in the world.