Did Peter Mayhew ever write a book about his experience playing Chewbacca?
Yes
No
He co-wrote a book
He wrote a screenplay
Answer
The answer is no, Peter Mayhew never wrote a book about his experience playing Chewbacca. Although he has written a book about his life called "Growing Up Giant", he never wrote a book specifically about his time playing the character of Chewbacca.
The Wookiee Wordsmith: A Quiz on the Legendary Peter Mayhew