Augment earth science teaching with dramatic 3-D views from stereophotographs and maps. Books are 8-1/2" x 11", plastic bound to lie flat, and in convenient classroom sets of 10. Require stereoscope for viewing.Contains 92 stereographs of landforms, geologic features, soils, vegetation and cultural features. Each has an accompanying description and grid index. 96 pages. Set of 10.