Via the Onion AV Club, Ralph Steadman, illustrator and Hunter S. Thompson collaborator has a memoir out, The Joke's Over: Bruised Memories—Gonzo, Hunter S. Thompson And Me. The folks at the AV Club give it only a C+, but as a long time fan of both Thompson and Steadman, I think it will be a must read.
And I notice there is also a foreward by Kurt Vonnegut. That alone should up it to a B- at least. Buy it here.