Introduction
The Western manuscripts, archives and letters collections consist of books and documents written in Latin, Greek and Cyrillic script. This introduction presents the collections, the various forms of access to them, and the shelfmarks you need for search actions and requests. Detailed information about five important subdivisions is available on separate webpages: medieval manuscripts; post-medieval manuscripts and private archives; Leiden University archives; letters; Bibliotheca Neerlandica Manuscripta.