Gelb "genius" books

I got the tape of "discover your genius", and liked listening to the beginning enough that I wanted to see the book, since it has "genius activities". Gelb has picked 10 genuises, and shows you how to think like them. I may not remember them all, but Jefferson, Elizabeth I, Shakespeare, Plato, Ghandi, Copernicus and Einstein.

So, I broke down and actually bought "how to think like Leonardo". I have yet to read any of it. I hope I will be able to work through it this summer.