All the painting dossiers published here online in the form of pdf files represent abridged versions of the extensive examination reports which were created in the course of the project "Research into the Painting Techniques of Impressionism and Postimpressionism" from 2005 to 2008 (»About the Project, »Team). The individual dossiers are classified according to the chief aspects of the systematic examination (»Conventions). The present Brief Reports provide valuable core information on each individual work. All the detailed information is archived at the Wallraf-Richartz-Museum & Fondation Corboud and may be inspected upon application.