Barack Obama is a celebrity multimillionaire these days, but he's also a former president. He just hasn't gotten around to doing the things most ex-presidents have already accomplished at this point in their post-White House careers. It has been almost eight years since Obama left office, and he still hasn't published a completed memoir of his presidency. The first of (at least) two volumes, A Promised Land (2020), was almost 800 pages long. No word yet on when the second volume will hit bookstores.