Textus Roffensis, a Rochester Cathedral book of the early twelfth century, holds some of the most significant texts issued in early medieval England, ranging from the oldest English-language law code of King Æthelberht of Kent (c. 600) to a copy of Henry I’s Coronation Charter (5 August 1100). Textus Roffensis also holds abundant charters (including some forgeries), narratives concerning disputed property, and one of the earliest library catalogues compiled in medieval England. While it is a familiar and important manuscript to scholars, however, up to now it has never been the object of a monograph or collection of wide-ranging studies. The seventeen contributors to this book have subjected Textus Roffensis to close scrutiny and offer new conclusions on the process of its creation, its purposes and uses, and the interpretation of its laws and property records, as well as exploring significant events in which Rochester played a role and some of the more important people associated with the See. The work of the contributors takes readers into the mind of the scribes and compiler (or patron) behind the Textus Roffensis, as well as into the origins and meaning of the texts that the monks of early twelfth-century Rochester chose to preserve. The essays contained here not only set the study of the manuscript on a firm foundation, but also point to new directions for future work.