1. Heterogeneous Photocatalysis: A Promising Advanced Oxidation Process 2. Membrane and Membrane Processes: The Fundamentals 3. Materials and Design of Photocatalytic Membranes 4. PMRs Utilizing Pressure-Driven Membrane Techniques 5. PMRs Utilizing Non--pressure-Driven Membrane Techniques 6. Performance of Reactors with PMs 7. PMRs in Photodegradation of Organic Contaminants in Water and Wastewater Treatment 8. PMRs in Photocatalytic Synthesis of Organic Compounds 9. How Far Are We from Large-Scale PMR Applications? 10. Modeling Photocatalytic Membrane Reactors 11. Economical Aspects in Photocatalytic Membrane Reactors