Yes, that was an entertaining book. Some of the interesting things I remember (and I might not remember them exactly correctly):

- Most languages developed a word for the color red before any other colors. Probably because blood is red and uniquely present at the most dramatic times of life.

- Blue is rarely seen in nature, and so many cultures wouldn't feel the need to distinguish between purple and blue, because neither was seen very often. There is one obvious exception though, the blue sky. Although anecdotal, the author used some precious scientific equipment, his daughter, to perform an experiment. He purposely avoiding telling his daughter the color of the sky, yet taught her the color of many physical objects. Once he was sure she knew all the colors he finally popped the question on a clear day: "What color is the sky?" His daughter seemed confused and eventually decided that the sky was white.