2D Gravity and Non-Perturbative Effects: Diffusion Equation, Continuum Limit and Universality in 2D Quantum Gravity; O. Alvarez, et al. On Triangles and Squares; C. Bachas. Non-Perturbative Effects in 2D Gravity and Matrix Modles; F. David. Integrable Models of 2D Quantum Gravity; P. Di Francesco, et al. Topological Strings and Loop Equations; R. Dijkgraaf, et al. The Two Matrix Model; M.R. Douglas. Action Principle and Large Order Behavior of Non-Perturbative Gravity; P. Ginsparg, et al. D = 1 Strings and String Field Theory: Matrix Models, String Field Theory and Topology; T. Banks. Multipoint Correlation Functions in One-Dimensional String Theory; D. Boulativ. The Penner Model and D = 1 String Theory J. Distler, et al. Non-Perturbative String Theory; D.J. Gross. Bosonic Strings and String Field Theories in One-Dimensional Target Space; V. Kazakov. Liouville Theory andD 1: Random Surfaces in Dimensions Larger than One; J. Ambjorn. On Gauge Invariances in Stochastic Quantization; L. Baulieu. The Quantum Group Structure of Quantum Gravity in Two Dimensions; J.L. Gervais. Notes on Quantum Liouville Theory and Quantum Gravity; N. Seiberg. 8 additional articles. Index.