The Provinciale (1430) is among the most significant and long-lived works of English ecclesiastical law. It edited and commented upon the legislation of the Province of Canterbury. This article explores the work's initial dissemination and early readership. It is based on an examination of the surviving manuscripts. The first owners of these manuscripts were almost all secular and religious clergy. Differences in content between the copies show how Lyndwood's work was modified. In particular, his edition became detached from his commentary. The manuscripts also reveal readers’ responses to the work. Marginal annotations indicate the individual, collective and academic ways in which early users engaged. Manuscripts were kept up to date through the addition of new laws, but not consistently or for very long. They continued to be consulted alongside the first printed editions of the work. Study of these manuscripts establishes the wide reception and influence of the Provinciale in pre-Reformation England.