Color Index XL: More than 1,100 New Palettes with CMYK and RGB Formulas for Designers and Artists by Jim Krause is a reference book, perfect for any professional who works with coordinating color schemed. This catalog of coordinating colors features every imaginable color including muted colors and bright colors. This is not an art book- and for the casual lay reader, the pages will look like monotonous page after page of color schemes. For the trained artist, this is a useful tool to determine which colors will best suit the job. This is a niche book, relevant for professionals. If you are in a professional field, you will find this to be a thorough and valuable reference book. I feel a casual artist or hobbyist may find this book too overwhelming or not as useful. As a blogger I received a copy of this book for the purpose of writing this review.