1. Introduction to superstrings and M-theory;Kaku,1999
2. The road to reality;Penrose,2004
3. Non-commutative geometry;Connes,1994
4. A review of E-infinity;El Naschie;Chaos, Solitons & Fractals,2004
5. Elementary prerequisites for E-infinity;El Naschie;Chaos, Solitons & Fractals,2006