Audrey Geisel was the widow of the late Dr. Seuss. She was in charge of his estate and works. Geisel passed away in 1991. Maurice Sendak was an American illustrator and children's author. His most notable work, Where the Wild Things Are, was published in 1963. He also authored In the Night Kitchen and Outside Over There, and also worked as an illustrator. He died in 2012.