There are a number of books and audio tapes by McKenna. Here's a website dedicated to him:

http://deoxy.org/mckenna.htm
Breukelen advocaat Reviewed by Breukelen advocaat on . Terrence Mckenna I dunno if anyone is a Terrence Mckenna fan but those who are do you know what hes talking about here? Is this what the mushrooms told him? "I am old, older than thought in your species, which is itself fifty times older than your history. Though I have been on earth for ages I am from the stars. My home is no one planet, for many worlds scattered through the shining disc of the galaxy have conditions which allow my spores an opportunity for life. The mushroom which you see is the part of my Rating: 5