Rick has been the subject of two biographies, originally a book called "The Caped Crusader" written by his good friend Dan Wooding. This has recently been republished. Rick has also written an autobiography called Say Yes! which is out of print, but copies can be found online.
In addition, Rick has written a couple of books of anecdotes about his colourful life as a musician, both in the studion and one the road. The first is available as an audio book.