Jimmy Fallon, host of NBC's The Tonight Show and #1 New York Times bestselling author, is back with a book for grandfathers. It may seem like PAPA doesn't do ANYTHING but sit in his chair. But he does so much more! From flying a plane to playing in a band, there's so much this PAPA has done. But through all the things he's accomplished in his life, there's nothing he wouldn't do for you.