All 22 volumes of the CRLB published prior to 2000 have been made available as downloadable and searchable PDF files on the Rubenianum website. Rubenianum staff is steadily creating links within these PDF files to records in the RKDimages database which provide updated bibliographic references and provenance information that were not available at the time of print publication. These online records also allow us to publish color images, improving on the black and white illustrations used in the CRLB. Moreover, they also provide images of copies referred to but not illustrated in the printed CRLB volumes.