This comprehensive publication presents most recent results, and covers practically all aspects of powder diffraction. Part 1 contains contributions dealing with powder diffraction methods, and the larger second part comprises contributions which deal with the application of powder-diffraction methods to specific problems in the physics and chemistry of solids. 1. Method Development. 2. Instrumental Developments and Measurement Techniques. 3. Software and Databases. 4. Synchrotron Powder Diffraction. 5. Neutron Powder Diffraction. 6. Characterization of Thin Layers. 7. Special Topic: In Situ, Time Resolved Powder Diffraction. 8. Miscellaneous. 9. Materials. 9.1 Thin Layers. 9.2 Amorphous Materials. 9.3 Metals and Alloys. 9.4 Minerals and Inorganics. 9.4.1 Analysis of Structural Changes. 9.4.2 Determination of Crystal Structure. 9.4.3 Various Analyses. 9.5 Organics. 9.6 Ceramic Supercoductors.