Letter writing, known as dictamen in the Medieval and Renaissance periods, was formatively dependent upon the theory of oral rhetoric of the ancient world, some reflections of which are still apparent today. Three oral rhetoric precepts were applied by letter writers: inventio, locating material for three kinds of letters; dispositio, organizing letters into an introduction, body, and conclusion; and style, applying ornateness along with clarity and correctness to prose. Representative English, Italian, and German letter writing practi tioners carried the oral tradition along.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/68843/2/10.1177_002194368802500302.pd