I bought this based on other reviews about it. I don't know doodley about color and have always gone on gut instinct...and I've painted over a lot of ruined canvas and wasted a lot of paint.This is an excellent little book with a lot of exercises to make it all quite clear. Every page teaches me something - I have so far had quite a few "AHA" moments. I am beginning to understand why sometimes a color works and sometimes it is just a little off...I recommend this for everyone. Thank you Nita Leland.