Advanced Dungeons & Dragons Monster Manual by Gary Gygax. An illustrated compendium of monsters: aerial servant to zombie.
Other than some rubbing damage to the top and bottom of the spine and some minor damage to the cover's corners, the book is in very good condition. The pages do not have any writing, highlighting, or underlining, with the exception of some red ink scribbled on a blank page in the front of the book.
An alphabetical compendium of all of the monsters found in AD&D, including attacks, damage, special abilities, and descriptions. 4th edition stated on the copyright page.