This dictionary covers, in one volume, over 1800 of the most important deities and demons from around the world. From classical Greek and Roman mythology to the gods of Eastern Europe and Mesopotamia, from Nordic giants to Islamic jinns and Egyptian monsters, it is packed with descriptions of the figures most worshipped and feared around the world and across time. Fully cross-referenced and featuring two handy guides to the functions and attributes shared by those featured, this dictionary is the essential resource for anyone interested in comparative religion and the mythology of the ancient and contemporary worlds.