Preface. Historical Perspectives of Acidity and Basicity. Part 1: 4000 B.C.--1800 A.D.; H. Schofield, J. Dwyer. Historical Perspectives of Acidity and Basicity. Part 2: 4000 B.C.--1800 A.D.; H. Schofield, J. Dwyer. Theory of Acids and Bases; K.N. Houk. Quantum Mechanical Study of Acid Base Reactions in the Solid State; M. Allavena. Acidity and Basicity Concepts: the Density Functional Viewpoint Based on an Atoms-in-Molecules Sensitivity Analysis; B.G. Baekelands, et al. The Acid Function in Zeolites; G.J. Gajda, J.A. Rabo. Basicity in Zeolites; D. Barthomeuf. The Nature of Lewis Acid Sites of Aluminium Oxide and in Zeolites as Studied by IR Spectra of Adsorbed Hydrogen; V.B. Kazansky. Structure and Composition Factors in the Acidity and Basicity of Inorganic Molecular Metal-Oxygen Cluster Catalysts and their Influence on the Surface and Catalytic Properties; J.B. Moffat. The Acidity and Basicity of Solids; J.B. Moffat. Characterization of Brnsted and Lewis Acidity by Nuclear Magnetic Resonance Spectroscopy; H. Pfeifer. Characterization of Brnsted Acidity of Solids by Rigid-Lattice Broad-line 1H-NMR; C. Doremieux-Morin. Comparison of Different Zeolites Studied by Two Proton NMR Techniques; L. Heeribout, et al. Catalytic Chemistry of Perfluorinated Resinsulfonic Acids; G.A. Olah. The Mechanism of Proton Transfer and the Nature of Protonated Intermediates in Heterogeneous Acid Catalysis; V.B. Kazansky. Acid-Base Bifunctional Catalysis; K. Tanabe. Generation of Acidity in Silicoaluminophosphates; D. Barthomeuf. Determination of Silicon Coordination Spheres in SAPO-37 Molecular Sieve with MS-Excel; P.P. Man, J. Fraissard. Importance of Preparation of Acidic and Basic Solid Materials; K. Tanabe. Regulation of Surface Acidity ofOxidic Carriers Used for the Preparation of Supported Catalysts; A. Lycourghiotis. Industrial Catalytic Applications of Acidic Molecular Sieves; P.R. Pujado, et al. Application of Solid Acids and Bases to Various Fields; K. Tanabe. Index.