Why in the world did I do that? How can I do better? Chances are you’ve asked yourself these questions at least once today. To understand how your mind works and how you can improve your decision-making, explore these six psychology and behavioral economics books, each one recommended by a renowned thinker.

“Lying is a cooperative act,” says professional lie detector Pamela Meyer. “Think about it, a lie has no power whatsoever by its mere utterance. Its power emerges when someone else agrees to believe the lie.” Here, Meyer shares 17 books about truth, dishonesty, and all the gray areas in between.