This study of the documents used in medieval England for the creation and transfer of interests in real property is the first book devoted exclusively to the subject since the publication of Thomas Madox's Formulare Anglicanum in 1702. The transactions covered include grants in fee and in perpetual alms, leases for life and for years, exchanges, surrenders and releases. Analysis of each kind of transaction is partly by way of commentary on the formulae of deeds, selected from the many thousands found in published cartularies and collections, and partly by relating the deeds to the relevant law of their periods, as found in early treatises, decided cases and the Year Books. The aim is to enable readers to identify and categorise deeds accurately, to appreciate their legal effects and to note instances where the practice of conveyancers and their clients differed from what is supposed to have been the law.