The nature and structure of geometric solids have long fascinated mathematicians, scientists and philosophers, while artists and designers have found a source of inspiration in the intrinsic beauty and sense of order of such forms. Now this unique new addtion to Dover's Cut & Assemble Series enables paper-construction buffs to experience the endless interest and challenge of 3-D shapes by constructing their own. Noted paper engineer and illustrator A.G. Smith has rendered 10 models in full color which demonstrate the design logic and structural integrity of geometric solids. Easy-to-follow step-by-step instructions and diagrams explain how to cut, glue and assemble eahc piece in this impressive collection. Beginners are advised to construct the simpler models (tetrahedron, octahedron and cube) before moving to such complex forms as the interpenetrating tetrahedrons and intricate variations of dodecahedrons. Science, math and puzzle enthusiasts 12 years and up will enjoy hours of creative entertainment as well as a fascinating close-up observation of the interrelationships of angle, line, form and volume in three-dimensional configurations. -- from back cover.