Abstract
This study investigates The Treatise on Fishing with an Angle from The Book of Saint Albans to determine how a fifteenth-century author approached the problem of writing accurate, technical prose on angling, a subject never before treated in a written work. The examination reveals that many of the rhetorical features are similar to the practices of modern technical writing. For example, the treatise makes a determined effort to relieve user stress about the new technology it introduces. It also makes its information easier to understand by forecasting its organization and by using common, concrete, and consistent terminology. Finally, the treatise includes illustrations that supplement the text in ways similar to modern illustrations.