Altamira cave paintings
Cover art by Damon Locks
Monoprints by Grady Gordon
Hallucinogenic Drugs and Plants in Psychotherapy and Shamanism http://people.tribe.net/98081223-6e3a-47cc-aba7-611d589bc44e/blog/9ce101b5-b97a-45a0-883b-52f331957629
Cover art by Joachim Luetke