The Digital Peirce Archive

The Digital Peirce Archive is an image-based archiving repository of the Nachlass of the American philosopher Charles S. Peirce (1839-1914). It was initiated by a collaboration between the Peirce Edition Project at Indiana University, Indianapolis, the Kolleg-Forschergruppe Bildakt und Verkörperung in 2011 and is continued by the cluster of excellence Image Knowledge Gestaltung. An Interdisciplinary Laboratory at Humboldt University in Berlin since 2013.

The archive assembles around 100,000 manuscript pages that span more than five decades, and touch on very different disciplinary domains. With an eye to improving the methodology of investigation of Peirce’s intellectual legacy, the archive is a citable research environment to search, filter, describe, share, export, and browse the manuscript pages. In this way, the Digital Peirce Archive intends to put the potentialities of shared expertise and information to the service of Peirce studies. Beyond this, however, it also seeks to foster the debate on the relevance of non-textual material to historical-philosophical studies, and more generally, on the theoretical significance of visual thinking (bildnerisches Denken). This latter goal has its roots in the studies of philosopher John Michael Krois (the project’s initiator), who first pointed to Peirce’s extraordinary relevance to a philosophical study of images. Project website: