The Caldecott Medal is awarded annually to the artist of the most distinguished American picture book* for children published that year. It was named in honor of nineteenth-century English illustrator Randolph Caldecott. Together with the Newbery Medal, it is the most prestigious American children's book award.
* A “picture book for children” as distinguished from other books with illustrations, is one that essentially provides the child with a visual experience. A picture book has a collective unity of story-line, theme, or concept, developed through the series of pictures of which the book is comprised.