Reynolds, John Frederick. “Delivery.” Ed. Theresa Enos. Encyclopedia of Rhetoric and Composition: Communication from Ancient Times to the Information Age. New York: Garland, 1996. 172-173.
Reynolds writes:
Delivery, however, is the more readily revived of rhetoric’s two “problem canons,” both theoretically and practically. In composition studies, especially with the advent of word processing and desktop publishing technologies, it has become increasingly popular for both scholars and students to rethink and reemploy delivery issues in rhetorical performance and rhetorical criticism. Current thinking about rhetorical delivery recognizes equivalencies among oral, written, and electronic pronuntiatio and actio–analogies between voice/gesture and layout/typography, for example. Composition studies focused on technical and computer-assisted writing seem especially to promote a reconsideration of delivery issues in these terms (see Connors, Panetta, and Reynolds for representative treatments).
Check out the following:
Connors, Robert J. “Actio: A Rhetoric of Manuscripts.” Rhetoric Review 2 (1983): 64-73.
Panetta, Clayann Gilliam. “Teaching Rhetorical Delivery in Freshman Composition.” Thesis. Old Dominion U, 1992.
Reynolds, John Frederick. “Classical Rhetoric and Computer-Assisted Composition: Extra-Textual Features as ‘Delivery.'” Computer-Assisted Composition Journal 3 (1989): 101-7.