Signed book: Comeback 2.0. First Touchstone hardcover edition. NY: Touchstone, 2009. Hardcover, 9.5 x 9.5. Signed on the title page in black felt tip with a PSA/DNA authentication sticker affixed. In fine condition, with an easily removable sticker affixed to the front cover. Accompanied by a certificate of authenticity from PSA/DNA. RRAuction COA.
