Piggy Piglet is wriggling in his sleep. He wriggles and he jiggles and he rolls on something very prickly. OWW How can his friends help him to get free? With its barnyard setting and its lively host of friendly and familiar farm animals, this is a perfect first picture book for young ones. Michael Rosen's hugely successful books include the top-selling "Going on a Bear Hunt" and "Snore " Jonathan Langley most recently illustrated "My First Dictionary."