Guns, Germs, and Steel is a brilliant work answering the question of why the peoples of certain continents succeeded in invading other continents and conquering or displacing their peoples. This edition includes a new chapter on Japan and all-new illustrations drawn from the television series. Until around 11,000 BC, all peoples were still Stone Age hunter/gatherers. At that point, a great divide occurred in the rates that human societies evolved....

"Which is more dangerous, a gun or a swimming pool? What do schoolteachers and sumo wrestlers have in common? Why do drug dealers still live with their moms? How much do parents really matter? How did the legalization of abortion affect the rate of violent crime? These may not sound like typical questions for an economist to ask. But Steven D. Levitt is not a typical economist. He is a much-heralded scholar who studies the riddles of everyday life--from...