Introduction 1 Part 1: Understanding What Atheism Is 7 Chapter 1: Meeting Atheism 9 Chapter 2: Unweaving the Rainbow of Disbelief 19 Chapter 3: Seeing What Atheists Believe and Why 37 Part 2: Following Atheism Through the Ages 61 Chapter 4: Finding Atheism in the Ancient World 63 Chapter 5: Going Medieval 77 Chapter 6: Enlightening Strikes 89 Chapter 7: Opening a Golden Age of Freethought 105 Chapter 8: Growing Up in the Tumultuous 20th Century 119 Chapter 9: Voicing a New Atheism for the 21st Century 143 Chapter 10: Welcoming the Shrugging Seculars 157 Part 3: Plunging into the Great Works of Atheism 169 Chapter 11: Uncovering Lost, Secret, Censored, and Forbidden Works 171 Chapter 12: Sampling Landmark Writings 183 Chapter 13: Laughing in Disbelief: Divine Comedies 201 Chapter 14: Reawakening Atheism in the Early 21st Century 213 Chapter 15: Exploring Different Ways to Be Secular 223 Part 4: Living a Full Life Without a Belief in God 233 Chapter 16: Getting Personal with Atheism Today 235 Chapter 17: Being Good Without Gods 251 Chapter 18: Seeing the World Naturally 271 Chapter 19: Being an Atheist Among the Religious 287 Chapter 20: Getting the Best of Religion and Leaving the Rest 305 Chapter 21: Grappling Godlessly with a Complex Future 321 Part 5: The Part of Tens 331 Chapter 22: Ten Things You May Not Know About Atheists 333 Chapter 23: Ten Groups of Humans with a Lot of Nonbelievers 339 Chapter 24: Ten Fun and Easy Ways to Explore Atheism 347 Index 355.