Chirping Insects typifies the finest of this colorful nature series: striking full-color photos, a detailed informative text, glossary of unfamiliar words, and index. The author describes the stridulation (sound-producing) mechanisms of grasshoppers, crickets, katydids, tree crickets and cicada. Close-up photos show the file-like rasp on the grasshopper's leg, the scrapper on the front wing of the katydid, and the file on the cricket's raised front wing. An adaptation of a Japanese publication, The World of Chirping Insects, this will appeal to American audiences as well because of the familiar insects portrayed. How Leaves Change, an adaptation of a Japanese title, The Mystery of Autumn Leaves, is attractive but flawed. The photos of new spring green leaves have fuzzy yellow blobs, and the darker green summer leaves are interspersed with some sort of pink blossom. Also American children will be unfamiliar with the Japanese flora pictured. Both titles have useful information in an attractive and accessible format. They should have wide appeal in schools and public libraries.