The Infrared and Raman Users' Group (IRUG) provides a forum for the exchange of infrared (IR) and Raman spectroscopic information, reference spectra and materials. Its biennial conferences offer a unique opportunity to share scientific results and new developments in the application of IR and Raman spectroscopy to the study and conservation of the world’s cultural heritage. Conference attendees are typically scientists, conservators, restorers, curators, as well as students within the art conservation and historic preservation fields, who apply IR and Raman spectroscopy to the analysis of art and archeological materials. IRUG is pleased to announce that the 10th international IRUG conference (IRUG10) will be hosted by the Department of Analytical Chemistry at the University of Barcelona, Barcelona, Spain in March 2012. Delegates from universities and museums throughout the world are encouraged to attend to share their experiences in the spectroscopic analysis of cultural heritage materials.