Saul wrote the book with Dave Shields, the author of The Race and other cycling books. You can get an autographed copy of the book from Dave's site now (Saul also signed many of the copies, but don't know if they're still available).
Much like Lance's book was "not about the bike", this book should be inspirational to anyone overcoming a serious accident or brain injury.
Plus, if you look on Saul's site, you'll see pics of him with his new fiance, who is also Dave Zabriskie's sister.