Shannon, Margaret. Gullible’s Troubles. Illustrated by Margaret Shannon. Houghton Mifflin, 1998. ISBN 0-395-86933-5. $15.00. Unpaginated. B 3-6 PB Reviewed by Sandra L. Tidwell Gullible guinea pig believes everything he’s told, and his Aunt Sarah, Uncle Bernard, and Cousin Lila, instead of helping him, tell him untruths, which he believes and follows. The tables are turned, though, when Gullible follows their directions on how to become invisible and how to keep safe from the cellar monster, and it works! Trust long enough, and truth results. Even though this is a picture book, I think older elementary school children will be its main audience. Use it to explain the word “gullible” as a new vocabulary word, or as a jumping-off place for a discussion on trust. Shannon is the creator of both the text and the animated illustrations of guinea pigs dressed in people’s clothing.