From the minds behind the British quiz show QI (for Quite Interesting), The Third QI Book of General Ignorance is a hilarious tome of trivia. With factoids about pyramids, corrections of erroneous quotes and deft explanations about the history of hovercrafts, the book jovially rectifies the reader's assumptions about how the world works. Chapters are framed by a question ("How many sphincters do you have?" for example), followed by a page and a half of explanation that often presents facts on half a dozen other topics as well. The whole book maintains a fun, loose feeling, as if one is skimming through Wikipedia with friends (and with a few drinks). Fans of trivia will love learning what they've gotten wrong over the years (no need to have consulted its prequels to enjoy this one fully), as will anyone who's interested in learning more strange, arcane things about the world. --Noah Cruickshank, adult engagement manager, the Field Museum, Chicago, Ill.