Uncaptioned pairs of gloriously colored photographs provoke thought and discussion on the subject of opposites; as a challenge, some of the pictures include more than one concept. Every time children approach the double-page spreads, they will discover something new. Practical for sharing with a group and for individual browsing.

The prolific master of the preschool photo-essay has produced another winner in which, as the title succinctly states, she wordlessly explores opposites. In 13 contrasting spreads framed by equally effective first- and last-page single photos, Hoban represents such ideas as closed/open, intact/ broken, big/little, front/back, hot/cold, up/down, tied/untied and more. The vivid color pictures are well composed, and often so intriguingly detailed that the viewer might even forget the book's ``point.'' But as is often the case with Hoban, her photographic prowess alone is worth the price of the book. Ages 2-up. (Sept.)

Hoban has done it again. Using a variety of people, animals, and objects found in outdoor settings of both the city and the country, she introduces and expands on the concept of opposites in this wordless photographic book. The photographs are clear, bright, and enticing. Pairs of opposites are presented on facing pages; some are repeated and thus reinforced. For instance, in one set of two girls playing with a wagon, there are the opposites of push/pull, in/out, left/right, and back/front. As with all of Hoban's books, readers are asked to view their environment in a new light while learning a new concept. A worthy addition to any collection. --Martha Topol, Interlochen Public Library, MI