All about Where

This newest entry from preschool concept master Hoban is initially more difficult to decode than her previous titles, but persistent parents and kids will find the extra effort worthwhile. In this book-length exploration of the idea ``where,'' Hoban combines a list of prepositions (above, behind, under, against, through, beside, among, below, etc.), on the white vertical borders of the book's first and last interior pages, with 26 smaller, size-graduated pages of her characteristically detailed, colorful photos sandwiched between them. Youngsters are urged to find as many ways as possible to match the concepts with the images. By cautioning that ``there is no one answer'' for each picture, this inviting and challenging book is open-ended, and can be enjoyed effectively over years of ownership. Ages 2-up. (Apr.)