Harriet Lerner, Ph.D., is one of our nation’s most loved and respected relationship experts. Renowned for her work on the psychology of women and family relationships, she served as a staff psychologist at the Menninger Clinic for more than two decades. A distinguished lecturer, workshop leader, and psychotherapist, she is the author of The Dance of Anger and other bestselling books. She is also, with her sister, an award-winning children's book writer. She and her husband are therapists in Lawrence, Kansas, and have two sons.

Helen Oxenbury is one of the world's most popular and acclaimed children's book illustrators. She has won England's Kate Greenaway Medal as well as many other awards. Her three series of board books--Heads, Bodies, and Legs; First Picture Books; and Pippo--have sold several million copies and are regarded as classics that revolutionized the board-book genre. Her recent books include It's My Birthday, So Much, and Alice's Adventures in Wonderland.

Susan Goldhor is a biologist who has traced mouse movements around a small island, collected sheep-guarding dogs from mountain villages in Turkey, and recycled organic wastes into a variety of products. Her latest project is exploring what fish like to eat. She lives in Cambridge, Massachusetts, and Tamworth, New Hampshire, with her husband, who is a physicist.