Amy Wallace has published twelve books, including The Psychic Healing Book with Bill Henkin, and with her family co-authored the #1 New York Times bestselling Book of Lists series, which sold millions of copies worldwide. Her solo works include the highly acclaimed erotic novel, Desire, and the bestselling biography The Prodigy: The Life of William James Sidis. She lives in Los Angeles, California.

Bill Henkin hold graduate degrees in English, psychology, and human sexuality. A former university English instructor and magazine editor, he is author or coauthor of 14 books and editor or producer of a dozen more, including The Psychic Healing Book (with Amy Wallace), The Rocky Horror Picture Show Book, and Consensual Sadomasochism: How to Talk About It and How to do it Safely.