I'll look into that book, thanks.
On a side note, assuming that you quoted, Joanna Pittmans book "2nd rarest hair color in the world" I simply find that hard to believe, just walking down the streets of London I can guarantee that I would pass a blond person within the first 5 minutes, the same can be said for the USA. Many of my friends have genuine Blond hair (not dyed).
I do take your point that, every hair style and color has its beauty.