Jackson, who said he was "really proud" to be a part of the American Library Association's initiative, attempted to pull a fast one on the photographer and crew, but finally fessed up.
"When we were doing the photo shoot for it, I flipped [the book] upside down to see if anyone would notice, and I literally got 10 photos before .... I was like, 'Wait guys you realize I'm holding the book upside down," the 'Breaking Dawn' star said.
He added, "I had almost gotten away with it. That close." At least he picked a great book for his prop! Watch Jackson's clip below, and check out the latest episodes from his new series, 'Aim High,' here.