Alvin Tresselt was an American children's book author and editor who is best known for his picture books. Born on September 30, 1916, in Passaic, New Jersey, he made significant contributions to children's literature during the mid-20th century. His most famous work is "White Snow, Bright Snow," which was published in 1947 and won the Caldecott Medal for its illustrations by Roger Duvoisin. Tresselt's stories often combined a deep appreciation of nature with a lyrical storytelling style. He collaborated with several renowned illustrators and helped to produce many beloved classics. Tresselt passed away on July 24, 2000. His legacy includes numerous works that continue to be enjoyed by children and admired by adults for their narrative qualities and the beauty of their prose.