I love this Benoit Mandelbrot book, The mis(Behavior) of Markets! His writing is very approachable for the average Joe (which is a concern when reading a book by the father for fractal geometry). One thing I love is every once in a while he will make a statement that assumes the tone of, "look, I'm over 80 years old. I am the father of fractal geometry. You can believe what I just said or not... and frankly I don't really care because I know I am right." What a badass! More on this book later.