PreS-Gr 1-- A cartoon family goes through the day doing silly things. The carrot-topped children dress (skirt over head instead of hips), relax in the park (swinging on sky-hanging trees), and propel a boat down a two-lane highway. After each nonsense picture is righted through creative thinking on the part of observant preschoolers, a corrected cartoon appears to guarantee that all is well in the world. Words are superfluous in this book--viewers will discuss ``what's silly'' with little prompting. This story-hour book for the youngest listeners is in the genre of Miller's Whose Hat? (1988) and Hoban's What Is It? (1985, both Greenwillow). It's a fine vehicle for encouraging observation and higher order thinking skills. All of that aside, children will like it because the book is bright, funny, and satisfying. This is a good addition to the concept collection shelf--and one that classroom teachers will appreciate for a shared story time. --Reva Pitch Margolis, Norwood School, N.J.