From the back cover:
A picture may be worth a thousand words – but a dungeon with more than a thousand rooms still requires a lot of pictures.
The Dwimmermount Illustration Book includes a complete set of illustrations of the Dwimmermount megadungeon’s most essential features and locations, designed to be shown to the players in the style of the classic adventures of old.
Featuring artwork hand-selected by dungeon creator James Maliszewski, the Illustration Book has over 40 different works by top artists including Jeff Dee, Mark Allen, Eric Quigely, Conor Nolan, John Larrey, Steve Zieser, Russ Nicholson, Kelvin Green, and the grand master of old-school fantasy, Erol Otus. Bring Dwimmermount to life with illustrations ready to be used right at your gaming table!
This is not a standalone product. A copy of Dwimmermount™ is required to run the dungeon. Dwimmermount is a 13-level megadungeon for Adventurer Conqueror King System™, Labyrinth Lord™ and other d20-based fantasy role-playing games, available for purchase separately from Autarch™ LLC.