The publications of the series Passages Online make the results of scholarly colloquia (conference proceedings and collected editions) as well as comprehensive non-monograph editions (collections of letters, documentaries, and catalogs) available to an international audience in open access. They are published online in PDF and print-on-demand on Heidelberg University’s publication platform arthistoricum.net – ART-Books. The goal of expanding our reach goes hand in hand with making the results of scholarly research more easily available.