This volume pairs 100-plus photographs with a discussion of the effects of glaciers on the landscape, formation and mass balance, flow and fluctuations, moraines, ogives, and surface details. Included are aerial photographs of glaciers along the north Pacific coast of North America and the interior ranges of Alaska, supplemented with ground- based photographs from the Himalayas, Switzerland, Chile, and other parts of the world. Post is a glaciologist, formerly affiliated with the U.S. Geological Survey. LaChapelle is professor emeritus of geophysics and atmospheric sciences at the University of Washington. Annotation c. Book News, Inc., Portland, OR (booknews.com)