Originally published in 1978, this book by the color Master, Faber Birren, is a personal guide to " aspects of light and color bearing on the reactions of living things and the welfare of human beings." Birren's love for humanity and understanding of the power of color prompted him to pen this book.  He recognizes that true healing can come through color study and mediation, and his chapters discuss human  response to color stimuli on all levels, i.e., biological , visual, emotional, aesthetic and pyschic. This volume was written in the author's  78th year, and his bibliography expounds over sixty years of documented color exploration on the globe, and the index reinforces the breadth of knowledge of this Master color pioneer. This volume is a necessary resource in any personal color library.