Preface. List of Contributors. 1. Theoretical Principles of Single- and Mixed-Gas Adsorption Equilibriaon Heterogeneous Solid Surfaces (G.F. Cerofolini, W. Rudziński). 2. Application ofLattice-Gas Models to Describe Mixed-Gas Adsorption Equilibria on HeterogeneousSolid Surfaces (Yu,K. Tovbin). 3. Theories of the Adsorption-Desorption Kinetics onHomogeneous Surfaces (H.J. Kreuzer, S.H. Payne). 4. Theory of Adsorption-DesorptionKinetics on Flat Homogeneous Surfaces (Yu.K. Tovbin). 5. Statistical Rate Theory and the MaterialProperties Controlling Adsorption Kinetics on Well Defined Surfaces (J.A.W. Elliot, C.A. Ward). 6.A New Theoretical Approach to Adsorption-Desorption Kinetics on EnergeticallyHeterogeneous Flat Solid Surfaces Based on Statistical Rate Theory of Interfacial Transport (W.Rudziński). 7. Surface Diffusion of Adsorbates on Heterogeneous Substrates (G. Zgrablich). 8.Computer Simulation of Surface Diffusion in Adsorbed Phases (W.A. Steele). 9. MulticomponentDiffusion in Zeolites and Multicomponent Surface Diffusion (Y.D. Chen, R.T. Yang). 10. Energy andStructure Heterogeneities for the Adsorption in Zeolites (A.S.T. Chiang, C.K. Lee, W. Rudziński, J.Narkiewicz-Michalek, P. Szabelski). 11. Static and Dynamic Studies of the Energetic SurfaceHeterogeneity of Clay Minerals (F. Villieras (et al.). 12. Multilayer Adsorption as a Toolto Investigate the Fractal Nature of Porous Adsorbents (P. Pfeifer, K.-Y. Liu). 13. Heterogeneous SurfaceStructures of Adsorbents (K. Kaneko). 14. Characterization of Geometrical and EnergeticHeterogeneities of Active Carbons by Using Sorption Measurements (M. Jaroniec, J. Choma). 15.Structure of Porous Adsorbents: Analysis Using Density Functional Theory and Molecular Simulation(C.M. Lastoskie, N. Quirke, K.E. Gubbins). 16. Dynamics of Adsorption in Heterogeneous Solids(D.D. Do). 17. Sorption Rate Processes in Carbon Molecular Sieves (J.M.D. MacElroy, N.A. Seaton,S.P. Friedman). Subject Index.