Gregory Maguire has been an artist at the Umbrella since 1995. He is a novelist for adults and children with nearly 40 books to his credit. A long-time champion of children’s literacy and literature education, Mr. Maguire has a doctorate from Tufts University. He is the cofounder of, and for a quarter century codirected, a nonprofit called Children’s Literature New England, whose aim was focusing attention on the significance of literature in the lives of children. His best known novel is Wicked. He reviews occasionally for the Sunday New York Times Book Review and has been a frequent guest on National Public Radio.