Hunter Thompson's The Rum Diary
If you haven't read this book yet and your a fan of Gonzo journalism then I would seriously suggest picking this book up. Although it was published in 1998 HST actually began writing it in 1959. Although he doesn't use himself as a main character there is still enough of him in the protaganist that you can see through the name change.
Another reason that you should definitly pick this book is that they are in production of a movie based on this book, with Johnny Depp playing the HST character. Have a go at this book, I certainly couldn't put it down when I read it last summer, I finished it overnight(it's only 200+ pages).