Book Sales Catalogues Online offers a comprehensive bibliography of book sales catalogues printed in the Dutch Republic before 1801, providing full access to some 4,000 digital facsimiles from ca. 50 libraries across Europe. These catalogues are a key primary source for research on the history of the book and libraries, the history of ideas, the history of collecting, the history of literature, and the history of art. The catalogues contain information on books from all over Europe in various languages, such as Dutch, French, and Latin.

This resource bundles 5 primary sources collections digitized by Brill. Each collection was compiled by a renowned expert and reflects a thematic focus relevant for the research on the age of the Reformation and confessionalization.

This Slavic Studies Bundle by Brill comprises 14 digitized collections with rare and often unique materials covering various aspects of Russian and Soviet history.

The world's first database of newspapers and magazines of Ukraine (UDB-UKR) includes publications in Russian, Ukrainian, and English. They cover a broad range of political, economic, and cultural affairs of Ukraine. Topics include Ukraine's progress along the reform path, the view and positions of various political forces, changes in legislation, ethnic relations, and organizational trends in development of the armed forces. The database also includes news wire reports and other products of Ukrainian news agencies. An integral and unique part of this database is the Ukrainian Book Chamber's editions, which list everything published in Ukraine with detailed bibliographic description.