The Trier City Library preserves bibliophilic treasures of the highest value, dating back to the 7th century. The Codex Egberti, the Trier Apocalypse, the Ada Evangelia or the Gutenberg Bible are particular treasures. This catalogue presents in words and images 100 of the most significant items from the collection. The library, which was created at the beginning of the 19th century, quickly developed into a huge depository of the abandoned manuscripts and prints of the secularized monasteries of the Trier area. In addition to magnificent manuscripts from the entire Middle Ages, there are numerous works from the early days of printing. Highlights of the collection include the Gutenberg Bible, the Schedelsche Weltchronik or the Catholicon created by Fust and Schöffer. Texts and fragments from the Old and Middle High German periods are also of great appeal, as are maps, atlases and autographs. This publication offers a representative cross-section of the collection and encourages you to visit the treasure-house that is the library at Trier.