To increase the service of Powder Diffraction to its readers, ICDD decided in 2007 to publish an additional supplement issue of Powder Diffraction annually in June for representative papers from a powder-diffraction and related conference. The first supplement issue was published in 2008 for articles selected from the Latin American Conference on Applications of Powder Diffraction.

In this 2009 supplement issue, representative papers from the 8th International Conference on Residual Stresses conference (ICRS-8) were selected and edited by I. Cevdet Noyan and Michael B. Prime, and then forwarded to Powder Diffraction for publication. By publishing papers from ICRS-8, the authors can showcase their experiments and findings to a larger audience, and our readers of Powder Diffraction can learn more about advances in residual stresses from scientists around the world.

Special thanks to our guest editors, Drs. I. Cevdet Noyan and Michael B. Prime, as well as the authors of the representative papers. I also want to acknowledge Nicole Ernst, Denise Flaherty and Carly Bray of ICDD for making sure that everything was in order for this supplement publication.