The basic idea of the Lexikon der österreichischen Provenienzforschung is to bring together the findings which the members of the Commission for Provenance Research and further provenance researchers have been gathering since 1998 on the seizure of art and cultural property during National Socialism and on restitution practice in the post-war period. The focus is on persons and institutions that were active in Austria between 1930 and 1960 in the fields of museums, cultural policy, collections and the art trade. The Lexikon der österreichischen Provenienzforschung is not a static project, but is constantly being expanded and supplemented.