The field of organic and printed electronics (OPE) is well established in terms of academic, scientific, and technological research. The mass applications, ranging from displays to printed sensors to photovoltaics, are growing and becoming all the more relevant today. This book provides a comprehensive introduction to organic flexible and printed electronics, their fundamental aspects, core technologies, and applications and is authored by international expert practitioners in the field. The book is a key reference resource specially designed to address students in their final undergraduate or beginning graduate studies as well as engineers interested in approaching this field from an application perspective. In this second edition of the book, almost all chapters have been revised and updated. Among others, the second edition includes new chapters on smart textiles and on photovoltaics. The chapter on characterization techniques has been expanded and includes new references to standards. The contents on circular economy, innovation management, and roadmapping chapters have been largely augmented and updated. Finally, the chapter on hands-on experiments includes new set-ups on dye solar cells and supercapacitors.