Instruct: Classify Amazon reviews into positive or negative sentiment
Query: A basic introduction to the power and use of light and color

Healing with Color and Light is an easy-to-read examination of the ways color and light can be used to improve our general well being and/or specific physical conditions. Charts, graphics and exercises--including visualizations, movement and relaxation--illustrate the principles being explained, and help even the newest color student understand the hows and whys. It not only instructed me, it also entertained me. I highly advise this book if you're looking for an introductory lesson into the world of color.