The Gutenberg Library is a specialized library covering the entire field of book, printing, and writing history. It comprises approximately 80,000 volumes and periodicals.

As a reference library, it makes its holdings available in the reading room, which is open to all interested parties free of charge. Most of the holdings are stored in magazines. There is a reference library in the reading room. Some of the holdings are on permanent or temporary display in the museum.

The library is divided into the sections "Incunabula Collection," "Exhibition Pieces," and "Specialized Literature."