01120cam a2200289 4500 43648813 TxAuBib 20070326120000.0 ||||||s2007||||||||||||||||||||||||und|u 2006049582 9781423102977 alk. paper 1423102975 alk. paper TxAuBib Willems, Mo. My friend is sad / by Mo Willems. New York : Hyperion Books for Children, 2007. 57 p : ill ; 24 cm. Elephant & Piggie book, An When Gerald the Elephant is sad, Piggie is determined cheer him up, but finds after many tries that it only takes the simplest thing to change Gerald's mood. 20250310. Pigs Juvenile fiction. Elephants Juvenile fiction. Emotions Juvenile fiction. Friendship Juvenile fiction. An Elephant & Piggie book.