Written Treasures is an introduction to the fascinating world of medieval manuscripts. From the treasury of the Leiden University Library, 50 extraordinary manuscripts have been selected. For centuries, we have studied the works of Cicero, Lucretius and Horace. We draw inspiration from the knightly tales of King Arthur and his Knights of the Round Table. Our knowledge of the world builds on the writings of classical and medieval poets, philosophers, theologians and jurists. But without the diligent monks and copyists of the Middle Ages, these texts would not have been preserved. Today's world is unthinkable without this transmission of written knowledge. Written Treasures introduces you to the fascinating world of medieval manuscripts. From the treasury of the Leiden University Library, 50 extraordinary manuscripts are selected: beautiful showpieces but also quickly notated works on second-rate parchment. Thirty-Eight experts highlight their content, appearance, design and their journey through generations of users and possessors to our times. With beautiful illustrations and accessible texts, this book is indispensable for history and book lovers. It is a celebration of cultural heritage and a tribute to the exceptional transmission of written knowledge through the ages.