The first edition of Pope and Swenberg's Electronic Processes of Organic Crystals, published in 1982, became the classic reference in the field. It provided a tutorial on the experimental and related theoretical properties of aromatic hydrocarbon crystals and included emerging work on polymersand superconductivity. This new edition contains the complete text of the first edition, plus an extensive new section, comprising nearly half of the book, which covers recent developments and applications with polymers. The book provides a unified description of what is known in almost every aspectof the field, from basic phenomena to the latest practical applications, which include LED's, photocopiers, photoconductors, batteries, transistors, liquid crystals, photorefractive devices, and sensors.