Preface Part One: Laughter 1. Can There Be a Theory of Laughter? 2. The Superiority Theory 3. The Incongruity Theory 4. The Relief Theory 5. A New Theory Part T

WALL STREET JOURNAL, LOS ANGELES TIMES, AND USA TODAY BESTSELLER • Anyone—even you!—can learn how to harness the power of humor in business (and life), ba

Do men and women laugh at the same things? Is laughter contagious? Has anyone ever really died laughing? Is laughing good for your health? Drawing upon ten year

"There has never been a time in Western history that humor and laughter were not topics of intellectual debate and interest. That is still true. John Morreall's