Ken Jennings's Trivia Almanac is the ingeniously organized book where, for a change, the all-time Jeopardy champ gets to ask the questions-and where every day of the year will give you the chance to test your trivia mettle.

For example-February 21: In 1912, on this day, Teddy Roosevelt coined the political phrase "hat in the ring," so Ken Jennings fires off a series of "ring" questions. What two NFL quarterbacks have four Super Bowl rings each?* What rings are divided by the Cassini Division?** Also on this date, in 1981, the "goth" music scene was born in London, so here's a quiz on...

"Ken Jennings reveals the truth behind all those things you tell your children" (Parade) in this entertaining and useful New York Times bestseller "armed with case histories, scientific finds, and experiments on himself and his own children" (Los Angeles Times).

Is any of it true? If so, how true? Ken Jennings wants to find out if parents always know best. Yes, all those years you were told not to sit too close to the television or swallow your gum or crack your knuckles are called into question by our country's leading trivia guru. Jennings separates myth from fact...