- For a wealth of information related to Western art from the Middle Ages to the present, see the databases of the RKD – Netherlands Institute for Art History. To access their complete collections (images, archives and books) you can visit the RKD in The Hague.
- For an encyclopedic web portal to art-historical material of all kinds, see Chris Witcombe’s Art History Resources on the Web.
No, CODART is not equipped to do research of this kind. For appraisals, you should consult a reputable art dealer, appraiser or auction house. For the attribution of Dutch and Flemish art objects or questions regarding unknown date or subject of an art work, the RKD – Netherlands Institute for Art History in The Hague offers an evaluation service. You can also inquire at the nearest museum in your area if it offers this type of service.