A review by bardicbear
Secret Language of Color: Science, Nature, History, Culture, Beauty of Red, Orange, Yellow, Green, Blue, & Violet by Joann Eckstut, Arielle Eckstut

4.0

This book alternates between chapters discussing the science related to color and chapters about each individual color. The science chapters cover a wide variety of topics such as how plants and animals evolved to use colors to why various minerals are the color they are. There is also a chapter detailing how humans see color and the way it's processed by our brains.
Each color chapter also has mix of information. It discusses emotions associated with colors and their origins, the history and background of certain dyes or paint colors and various other stories related to specific colors.
It contains a whole bunch of information, most of which I will probably not remember for an extended time, but I found it a very interesting read.

Age Recommendation:
I think it would be interesting for all ages but some of the science could be difficult for younger kids to follow.