The Illithiad is a visually stunning tome that details important information on mind flayers, their mental powers, and their dire plans to control the multiverse.

This "complete book of illithids" covers:

• The anatomy and physiology of the mind flayer.
• The terrible truth about the mind flayer life cycle.
• Illithid-kin, undead mind flayers, and new 'flayer-kin monsters.
• A balanced look at illithid psionic powers.
• Illithid origins, history, theology, psychology, and society.
• A detailed description of a typical mind flayer community.
• Unique mind flayer psionic abilities and items.