Maurice Sendak's Where the Wild Things Are, published in 1963, is a children's picture book that explores childhood emotions, particularly anger. The book won the Caldecott Medal, the highest US honor for picture books, in 1964. Considered innovative for its time, Where the Wild Things Are has remained a significant contribution to children's literature for over 50 years. The book is about a child's emotions and anger, and was considered innovative for its time.