The Manuscripts of Charles Sanders Peirce, with over 100.000 unpublished pages, form a vast and complex bibliographic resource. Without a proper orientation is almost impossible to locate which manuscripts are of interest and what are their content. For those purposes, the catalog provided by Richard Robin was and is an essential instruments to identify, date and describe their content. However, the last edition of the catalog dates 1971. This urges the realization of new instruments or updates, given the fact that many manuscripts are now available in published editions but their bibliographic references are not reported in the catalog.

Moreover, till now there exists no list of which manuscripts are translated in Italian.

The aim of the Manuscripts's Portal is to close this gap providing an instrument to locate which manuscripts are now available in published and critical editions. The portal has three main aims: