Color is complicated, no doubt about that which is why I'm hard at work making the second book to follow up on the first one (Making Sense of Color). This next one focuses on color observation and color design. It's going to clear up some common myths which I feel are propagated in modern teaching, even in "good" art schools. Color is not tied to any type of visual art (realism, photo-realism, abstract, representational etc.) and I really hope this next book will allow people to learn color in a way that is very individual yet truthful.
In the meantime, what sorts of concerns do you have about color and why?