A few years ago I purchased a couple of advance readers copies (ARC or uncorrected proof) of the David Ortiz book on Ebay. They were cheap, maybe $4-5 each. When Papi went on his rehab assignment to the Portland Sea Dogs, I decided to send one off, just on the off chance he would sign it. I know he went on a book signing tour and signed a bunch of hard covers, but I can't imagine there are too many, possibly no other signed ARC's out there.