Wick, Walter. I spy mystery : a book of picture riddles / photos. by Walter Wick ; riddles by Jean Marzollo. - New York : Scholastic, 1993. - 37 p. : col. ill. ; 32 cm. - Cartwheel books . Rhyming verses ask readers to find hidden objects in the photographs. 1. K-3. ISBN: 0590462946 LCCN: 93009423 /AC Subjects--Topical Terms: Picture puzzles. Dewey Class. No.: 793.73