Of the many color books i read, this was the hardest to understand, and the least enjoyable to read. It would have done much better if it had more image examples rather than drawn out description exercises within the text itself. Probably the most surreal moment of the text is in chpt. 8 when it refers to 'an effect that has no common name but is nevertheless important'... and this is supposed to be a textbook for classes? Make up a name then! You're supposed to be an expert! Create a name, maybe it will stick!