This revised and up-dated second edition provides an insight into how the fundamental principles of the chemistry of colour are applied in dyes and pigments. The structure of the first edition has been largely maintained however the chapter on functional dyes has been substantially re-written to embrace the significant developments in the chemistry and technologies involved in this area in the last decade. Environmental factors have become increasingly sensitive and the chapter covering this has been expanded to reflect the importance of environmental issues in society in general and in the colour industry in particular. A new chapter is introduced on colour in cosmetics, with particular emphasis on hair dyes, due to the growing international, industrial importance of this topic. Colour Chemistry will be of interest to academics and industrialists who are specialists in colour science or who have involvement with the diverse range of coloured materials, for example traditional application in textiles, paints, printing inks, plastics and cosmetics, and functional applications in electronics and biology. Broad and balanced in its coverage, this book provides an introduction to the art of colour science that is ideal for students and graduates as well as specialists in industry and academia