"The Essential Guide to Mindful Dressing" by Jules Standish is a helpful style guide that talks mostly about colors that should or should not be worn by different color types. I like the breakdown she does of each color which includes: Benefits of Wearing, When Not to Wear, What Colors to Wear With, and others. The sections on how neutral tones bring balance to colors are helpful. A good "go to" for fresh ideas. I will purchase a hard copy.