%0 Journal Article %T Topology and Strings: Topics in $N=2$ %A C. Gomez %A E. Lopez %J Physics %D 1994 %I arXiv %X A review on topological strings and the geometry of the space of two dimensional theories. (Lectures given by C. Gomez at the Enrico Fermi Summer School, Varenna, July 1994) %U http://arxiv.org/abs/hep-th/9411056v1