The benefits of the levity effect are not conjecture but are built on extensive research and case studies from some of the world's most successful organizations.New York Timesbestselling authors Adrian Gostick and Scott Christopher provide powerful examples from Boeing, Nike, KPMG, Yamaha, Enterprise, Zappos, and dozens of others, showing how lightening up can drive real business results. The book also outlines the extensive research into the subject-studies that cut against the grain of traditional business thinking-including compelling data from the Great Place to Work® Institute's one-million-person database, which reveals that "Great" companies consistently earn significantly higher marks for "fun."The Levity Effect uses serious science to reveal the remarkable power of humor and fun in business.