03/31/2008 at 01:00 AM EDT
Three new books explore why human behavior so often defies logic—and offer tips on how to wise up
PREDICTABLY IRRATIONAL by Dan Ariely You'll eat more at a buffet even if you're full—and other stupid human tricks. Unlearn them here.
THE AGE OF AMERICAN UNREASON by Susan Jacoby Steeped in "infotainment" culture, Jacoby says, we're too uninformed to act rationally.
SWAY by Ori Brafman and Rom Brafman That's not you who's deciding, it's your unconscious—and it doesn't have a clue. (June pub.)