The 2010 Caldecott Medal winner is The Lion & the Mouse, illustrated and written by Jerry Pinkney. Lovely watercolor illustrations retell this Aesop fable.
The Caldecott Medal is awarded annually by the American Library Association for excellence in illustrations in children's literature.
Look for this and other Caldecott winners at your library. You can see a list of winners for other years at the American Library Association website.