Intuitive Color & Design
by Jean Wells
This playful book, written for art quilters, has lots of value for knitters as well. The author uses photographs to develop her pieces; she covers issues of proportion, abstracting a design from a photograph, and color intensity, personality, and temperature. Although roughly half the book focuses on quilting issues, I think it would make a good addition to the library of any color-obsessed knitter who already has the basics.
Paperback; 96 pages.