Raised in a family of writers (his father was a journalist and his stepmother a poet), Gregory Maguire grew up with a great love of books, especially fairy tales and fantasy fiction. He composed his own stories from an early age and released his first book for children, The Lightning Time, in 1978, just two years after graduating from the State University of New York at Albany.

Several other children's book followed, but major recognition eluded Maguire. Then, in 1995, he published his first adult novel. A bold, revisionist view of Frank L. Baum's classic Oz stories, Wicked: The Life and Times of the Wicked Witch of the West places one of literature's most reviled characters at the center of a dark dystopian fantasy and raises provocative questions about the very nature of good and evil. Purists criticized Maguire for tampering with a beloved juvenile classic, but the book received generally good reviews (John Updike, writing in The New Yorker, proclaimed it "an amazing novel.") and the enthusiasm of readers catapulted it to the top of the bestseller charts. (Maguire's currency increased even further when the book was turned into the Tony Award-winning Broadway musical Wicked in 2003.)

In the wake of his breakthrough novel, Maguire has made something of a specialty out of turning classic children's tales on their heads. He retold the legends of Cinderella and Snow White in Confessions of an Ugly Stepsister (1999) and Mirror, Mirror (2003); he raised the ghost of Ebenezer Scrooge in Lost (2001); and, in 2005, he returned to Oz for Son of a Witch, the long-awaited sequel to Wicked. He has reviewed fantasy fiction for the Sunday New York Times Book Review and has contributed his own articles, essays, and stories to publications like Ploughshares, The Boston Review, the Christian Science Monitor, and The Horn Book Magazine.

In addition, Maguire has never lost his interest in -- or enthusiasm for -- children's literature. He is the author of The Hamlet Chronicles, a bestselling seven-book series of high-camp mystery-adventures with silly count-down titles like Seven Spiders Spinning and Three Rotten Eggs. He has taught at the Center for the Study of Children's Literature at Simmons College and is a founding member of Children's Literature New England (CLNE), a nonprofit organization that focuses attention on the significance of literature in the lives of children.