This book addresses different recent advanced aspects of lignin and its applications, with the main recent progress in this field being reviewed and presented. Several different approaches to lignin and new ideas about its utilization are exposed in the book chapters. Technology, and the science behind the technology, of lignin are the main focus of the volume, with perhaps a less classical approach than other lignin volumes. The book will be of particular use to application researchers and technicians in lignin applications and in biorefinery derivates and their uses. The emphasis is always on a green materials approach throughout the various lignin application fields tackled.