Eugene Fama is one of the pioneer’s of efficient market hypothesis. He is the guy behind Fama-French model and countless other theories behind Modern Portfolio Theory. There is none other more respected individual in finance then him. He has written 2 books which are long out of print. He has made copies of those books and made available.
Take a look:
http://faculty.chicagobooth.edu/eugene.fama/research/index.htm
If you are really interested in the math behind Modern Finance (or if you are feeling less challenged in your current environment), you can give these books a try. They are real gem (Caution, they are used for Phd. Courses in University of Chicago Finance department).
