I just finished a book I bought in June 2005 for the late Doctor Gonzo, aka [also known as, this is for ra-1 who asks this question alot :)], which is called Kingdom of Fear

It is the last book he published before his death in 2005.
This book is a magical journey in his mind and his past, with very joyous and gonzo-ful stories. My favorites are the time he is in Cuba, the episode with Judge C. Thomas (we all remember him from the hearings) and the incident with the ex. porn star who accused him of violent behavior.
Next on the list will be a few books from Chuck Palahniuk.