Preface. Acknowledgements. 1. Theory of Finite-Size Scaling. Contributors: M.N. Barber, K. Binder, E. Brézin, E. Eisenriegler, M.E. Fisher, Y.Y. Goldschmidt, H. Guo, D. Jasnow, M. Nauenberg, V. Privman, J. Rudnick, R. Tomaschitz, A.P. Young, J. Zinn-Justin. 2. Applications. Contributors: M.N. Barber, H.W. J. Blöte, R.C. Brower, M. Creutz, B. Derrida, M.E. Fisher, C.J. Hamer, W. Kinzel, M. Lüscher, E. Marinari, M. Nauenberg, M.P. Nightinglae, V. Privman, L. de Seze, J. Vannimenus, J.M. Yeomans. 3. Conformal Invariance and Finite-Size Scaling. Contributors: I. Affleck, F.C. Alcaraz, M.N. Barber, M.T. Batchelor, H. Blöte, J.L. Cardy, M. Kolb, M.P. Nightingale, K.A. Penson.