1 Synthesis of Aluminosilicate Zeolites and Related Silica-Based Materials.- 2 Phosphate-Based Zeolites and Molecular Sieves.- 3 Modification of Zeolites.- 4 Characterization of Zeolites - Infrared and Nuclear Magnetic Resonance Spectroscopy and X-Ray Diffraction.- 5 Shape-Selective Catalysis in Zeolites.- 6 Zeolite Effects in Organic Catalysis.- 7 Zeolites as Catalysts in Industrial Processes.- References.