The 10th-century illuminated pocket gospel book known as the 'Book of Deer' is one of the treasures of Cambridge University Library. Of great historical significance in its own right, the gospel book was used in the early 12th century for recording grants to the monastery of Deer, Aberdeenshire. In this collection of specially commissioned essays leading scholars from a range of disciplines, examine the Book, its notitiae, and their wider social, historical and cultural contexts, all in the light of the substantial advances made in Scottish early medieval studies in the last decade.