Jennings also investigates the shadowy demimonde of today's trivia subculture, guiding us on a tour of trivia across America. He goes head-to-head with the blowhards and diehards of the college quiz-bowl circuit, the slightly soused faithful of the Boston pub trivia scene, and the raucous participants in the annual Q&A marathon in Stevens Point, Wisconsin, "The World's Largest Trivia Contest." And, of course, he takes us behind the scenes of his improbable 75-game run on Jeopardy!

But above all, Brainiac is a love letter to the useless fact. (Who knew that there's a crater on Venus named after Laura Ingalls Wilder? Ken Jennings, that's who.) Engaging and erudite, Brainiac is an irresistible celebration of nostalgia, curiosity, and geeky obsession--in a word, trivia.