Winsome color photos silhouetted on a clean white ground show babies and toddlers in 11 activities from ``Making Faces'' to ``Sleeping,'' captioned by an uncredited, undistinguished rhyming text that serves to relate language to image. The photos are outstanding, with lots of variety in both action and arrangement; rhythmic sequences of one child are often contrasted with those of another in a related activity, enhancing both meaning and design. Large enough to share with a toddler group. (Picture book. 0-4)