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 adults. Her most recent books of poetry include What Are You Glad About? What Are You Mad About? and Nearing Ninety . She lives in Washington, DC. Arnold Lobel (1933-1987) was the award-winning author and illustrator of many beloved children's books, including the classic I Can Read books about Frog and Toad, and the Caldecott Medal-winning Fables .