Plenary Lectures. The control of selectivity and stability of catalysts by spillover processes (B. Delmon). Catalyst design based on spillover theory (K. Fujimoto). Spillover effect as the key concept for realizing rapid catalytic reactions (T. Inui). Special Lecture. The history and perspectives of spillover (S.J. Teichner). Invited Lectures. Synergism in the catalysis of supported gold (M. Haruta et al.). The effect of spillover hydrogen on coke formation catalyzed by HY zeolite and pillared montmorillonite (E. Kikuchi, T. Matsuda). Spectroscopic insight into spillover (W.C. Conner, Jr.). Molecular hydrogen-originated solid acid catalysts (H. Hattori). Hydrocracking of residual oils with iron supported zeolite containing catalyst (I. Nakamura, R. Iwamoto, A. I-ino). Attempt at the characterization of spillover adsorbed species during catalysis (G.M. Pajonk). Oxygen spillover for the design of industrial oxidation catalysts (Y. Moro-oka). Oral Presentations. (A selection of papers). Ion spillover as the origin of the NEMCA effect (C.G. Vayenas et al.). Hydrogen spillover on bimetallic supported Pt-Re particles (D.T. On, M. Che, L. Bonneviot). Hydrogen spillover in the conversion of cyclohexane on ZSM-5 zeolites (F. Roessner, U. Mroczek, A. Hagen). The role of spillover in hydrogenation of oxygenates adsorbed on Ni/Al2O3 (B. Chen, J.L. Falconer). Selective hydrogen permeation through metal-dispersed porous alumina membrane (K. Eguchi et al.). Methoxy formation/spillover on Pd/Al2O3 studied by 13C, 1H NMR (O.H. Han et al.). A mathematical model for spillover (Y.W. Nam, P.L. Silveston). Promoting effect and hydrogen spillover in supported SeRh6-cluster analysis (Y. Izumi, Y. Iwasawa). Heterogeneous catalytic ammoximation of cyclohexanone with ammonia and molecular oxygen (G. Busca et al.). Poster Presentations. (45 papers). Author index.