Judith Viorst is the author of the beloved Alexander and the Terrible, Horrible, No Good, Very Bad Day, which has sold some four million copies; the Lulu books, including Lulu and the Brontosaurus; the New York Times bestseller Necessary Losses; four musicals; and poetry for children and young adults. Her most recent books of poetry include What Are You Glad About? What Are You Mad About? and Nearing Ninety.

Erik Blegvad was born in Denmark and studied at the School of Applied Arts in Copenhagen. Mr. Blegvad has illustrated more than one hundred children's books, including Twelve Tales by Hans Christian Andersen, Riddle Road by Elizabeth Spires, Hurry, Hurry, Mary Dear! by N. M. Bodecker, and Sea Clocks: The Story of Longitude by Louise Borden. The Blegvads divide their time between England, France, and Wardsboro, Vermont.