No matter how smart we believe ourselves to be, we're all susceptible to bull, and we all engage in it. Presented as truths by authority figures and experts—from Bernie Madoff to Mao Zedong—it appears legitimate, and we accept their words as gospel. Highlighting examples from the used car, real estate, wine, and diamond industries, social psychologist John Petrocelli exposes the red-flag warning signs found in the anecdotal stories, emotional language, and buzzwords used by salesmen and social media influencers. By developing critical thinking and scientific reasoning skills, you can learn to wisely evaluate information, and see through spin.