Vast compilation of royalty-free images from many cultures and eras — from prehistoric rock paintings to works of Max Ernst, from the masks of black Africa to the gargoyles of Notre Dame.
Here's a sample of other books in this Dover category
Doré's Dragons, Demons and Monsters by Gustave Doré Superb reproductions of illustrations for The Bible, Paradise Lost, The Divine Comedy, and other works, with brilliantly imaginative scenes dominated by fantastic creatures of land, sea, and air. 90 illustrations.
Big Book of Dragons, Monsters, and Other Mythical Creatures by Ernst Lehner, Johanna Lehner Engrossing text accompanies images of werewolves, serpents, mermaids, and other fabulous creatures. Also includes pictures of the whale, octopus, armadillo, and other real animals once associated with supernatural power. 317 illustrations.