The Caldecott Medal is an annual award given to the most distinguished American picture book for children. Established in 1938, it honors the artist of the best illustrated children's book published in the previous year. The award is named after the British illustrator Randolph Caldecott, whose work greatly influenced children's literature. The medal is awarded by the Association for Library Service to Children (ALSC), a division of the American Library Association (ALA). The selection process involves a committee of librarians and educators who evaluate the artistic quality and contribution to children's literature. Winning the Caldecott Medal can significantly boost a book's visibility and sales.