You Are Not So Smart: Why You Have Too Many Friends on Facebook, Why Your Memory Is Mostly Fiction, and 46 Other Ways You're Deluding Yourself is a self-help and informative book written by David McRaney and was published in 2011.
In the book, McRaney describes the general, daily flaws and errors that humans make, as dictated by our minds and social conventions; he also injects humor into describing various logical fallacies. He further explains our ability within human nature to delude ourselves and therefore limit ourselves in the long term. McRaney further describes 48 ‘brain bugs’ that mold human cognition and how they play into one's ability to fit into society.
This book was successful and became an international bestseller. In fact, McRaney also went on to write a sequel called You Are Now Less Dumb. The Evening Standard stated that it was ‘populist [and] witty’ whilst Professor Richard Wiseman has noted it for being "An engaging and useful guide to how our brilliant brains can go badly wrong.”