"Back Story" by Robert B. Parker is a hardcover book published by Penguin Publishing Group in 2003. This novel is part of the Spenser Mystery Series, featuring the character of Spenser as a private investigator. With a genre of fiction, this book includes elements of mystery, detective work, and action-adventure. The book has a length of 9.3 inches, height of 1.3 inches, and width of 6.3 inches with a weight of 22.1 ounces. It contains 304 pages and is written in English, making it a compelling read for fans of the mystery and detective genre.