Billion Dollar Loser is a 2020 book by Reeves Wiedeman about WeWork and its founder Adam Neumann.

The book received mostly positive reviews from critics for its insight into WeWork's initial success and eventual devaluation.

[1][2] Publishers Weekly wrote that it was "a thrilling page-turner about the fantastic success and subsequent crash of WeWork.

"[3] Writing for The New Republic, J.C. Pan described it as "a definitive chronology of a company doomed not by one bad business strategy—or even Neumann’s outsize ego—but by the rot of a postrecession economy that nurtured a certain flavor of investor-class mania.

"[6] Kathryn Brenzel, in a review for the trade publication The Real Deal, wrote that the book was "more recap than revelation".