Busy Beaver Pond: A Pop-Up Book

Spinning off its One Small Square books to address the needs of younger readers, Scientific American Books for Young Readers announces the One Very Small Square series. First titles Lion Cubs at Home and Busy Beaver Pond, both by Donald Silver, illustrated by Patricia Wynne, gain pop-ups and pull-tabs while retaining the original series' clean illustration style and attention to detail (W.H. Freeman, $8.95 each, 12p, ages 3-6 ISBN 0-7167-6609-4; -6608-6 Sept.).