Amy Butler Greenfield, A Perfect Red: Empire, Espionage, and the Quest for the Color of Desire, Harper Perennial, New York, 2005
natural history of red. Cochineal features hugely. Fascinating, but I haven't quite finished it yet. And still I haven't finished this book [24mar10]. have one more in my stack to go before i come back to the story of Cochineal and dyes and global economics of the 16th century.