chapter 1 Introduction: Clay Structure, Surface Acidity, and Catalysis -- chapter 2 Molecular Modeling of Clay Mineral Structure and Surface Chemistry -- chapter 3 Clay-Organic Interactions: Organoclay Complexes and Polymer-Clay Nanocomposites -- chapter 4 Sorption of Nitroaromatic Compounds on Clay Surfaces -- chapter 5 Photoprocesses in Clay-Organic Complexes -- chapter 6 Pillared Clays and Porous Clay Heterostructures -- chapter 7 Layered a-Zirconium Phosphates and Phosphonates -- chapter 8 Layered Double Hydroxides (LDHs) -- chapter 9 Layered Manganese Oxides: Synthesis, Properties, and Applications -- chapter 10 Layered Metal Chalcogenides -- chapter 11 Alkali Silicates and Crystalline Silicic Acids.