The geometry and topology of moduli spaces.- Topics in conformal field theory and string theory.- Geometrical aspects of the Kadomtsev-Petviashvili equation.- Geometry of standard constraints and anomalous supersymmetric gauge theories.- Hamiltonian formulation of string theory and multiloop amplitudes in the operator context.- Conformal field theory, real weight differentials and KdV equation in higher genus.- Supermoduli and superstrings.