01072cam a2200301 4500 513055388 TxAuBib 20110530120000.0 060719s2007||||||||||||||||||||||||eng|u 2006049582 9781423102977 1423102975 9780545071475 paperback 054507147X paperback (OCoLC)70878028 DLC DLC BAKER VPL BTCTA YDXCP TxAuBib Willems, Mo. My friend is sad. New York : Hyperion Books for Children, 2007. 57 p. : col. illus. ; 24 cm. Elephant and Piggie book 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. 20110530. Pigs Fiction. Elephants Fiction. Emotions Fiction. Elephant and Piggie book.