This book provides a comprehensive, up-to-date account of the solid phase processing of polymers with particular emphasis on the production of oriented polymers in the form of fibers, films, and solid sections, including rods, sheets, and tubes. It explains how such oriented materials can be produced by a wide range of techniques, including tensile drawing, die drawing, ram extrusion, and hydrostatic extrusion. It also discusses how the development of molecular orientation and structural changes lead to improvements in properties, especially in mechanical properties. This book forms a useful bridge between polymer engineering and polymer physics. It serves as a valuable aide to the experienced polymer scientists/technologists and a useful introduction to those entering a very challenging and exciting area.