Cambridge University Library is one of the world's great research libraries. This book is a celebration of the treasures of the library from the perspective of a group of eminent scholars who actively use the collections for research. Chapters have been selected to illustrate the vast range of the Library's collections: from the fifth-century Codex Bezae to the archives of contemporary writers and politicians; from medieval manuscripts to the letters of Charles Darwin; on history, theology, politics, sociology, art history, biology, agriculture, mathematics, and astronomy. Extensively illustrated with over 200 photographs, many of them in colour and published for the first time, Cambridge University Library: The Great Collections offers a unique perspective on a remarkable institution.