I would also recommend the book by Edward Frenkel, "Love and Math" where he talks about his involvement in the Langland program. Also, he has a very cool lectu

I would also recommend the book by Edward Frenkel, "Love and Math" where he talks about his involvement in the Langland program. Also, he has a very cool lecture on the subject here: "What Do Fermat's Last Theorem and Electro-magnetic Duality Have in Common?" http://online.itp.ucsb.edu/online/bblunch/frenkel/ http://online.itp.ucsb.edu/online/bblunch/frenkel/