The Proceedings of the Fourth International Congress on Industrial and Applied Mathematics, Edinburgh, includes talks from the 30 plenary speakers who between them covered the gamut of applied mathematics in topics such as superconductivity (S.J. Chapman, Oxford); elastic media (A. Friedman,Minnesota); mathematical modelling of the Internet (F. Kelly, Cambridge); Monte Carlo methods for financial applications (S. Tezuka, IBM Tokyo); liquid turbulence, partial differential equations, discrete optimisation, and computational aspects of all these topics. Speakers J.A. Sethia (Berkeley),J.K. Lenstra (CWI, Amsterdam), R.V. Kohn (Courant Institute, New York), S. Muller (Leipzig, Germany), C. Johnson (Goteborg, Sweden). Also included are summaries of the mini symposia, and details of the prizes. This important summary of topical and applicable mathematics from the world's leaders inthe subject is a 'must-have' reference volume for graduate students and researchers interested in applied and computational mathematics.