Bill Martin, Jr. (1916-2004) was an elementary-school principal, teacher, writer, and poet. His more than 300 books, among them the bestselling classics

Brown Bear Brown Bear What Do You See ; Polar Bear Polar Bear What Do You Hear ; Panda Bear Panda Bear What Do You See ; and Chicka Chicka Boom Boom , are a testament to his ability to speak directly to children. Martin held a doctoral degree in early childhood education. Born in Kansas, he worked as an elementary-school principal in Chicago before moving to New York City, where he worked in publishing, developing innovative reading programs for schools. After several years, he devoted himself full-time to writing his children's books. He lived in New York until 1993, when he mo