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Self-deception is a harmful, if not dangerous, thing. So why then is it omnipresent? In Useful Self-Hypnosis, Shankar Vedantam and Bill Mesler argue that self-delusion can be very beneficial to our success and well-being.

Lies, small or large, support our daily communication with friends, partners and colleagues. By analysing it, you can understand why some people live longer than others, why some couples have long and strong relationships, and why some can't last a year together; why some peoples know how to unite, and others don't. You will also find out why we teach children to say please and thank you, even if the situation does not require them to be polite.

The book contains many unusual stories, stories about scientific research and numerous experiments with unexpected results.