This was the initial monster book for the first edition of the Advanced Dungeons & Dragons game, published in 1977. Gary Gygax wrote much of the work himself, having included and expanded most of the monsters from the previous D&D supplements. Also included are monsters originally printed in The Strategic Review, as well as some originally found in early issues of The Dragon (such as the anhkheg and remorhaz), and other early game materials. This book also expanded on the original monster format, such as including the stat lines on the same page as the monsters' descriptions and introducing more stats, expanding the length of most monster descriptions, and featuring illustrations for most of the monsters. The book features an alphabetical table of contents of all the monsters on pages 3-4,