Technical writing theory and research about communication in large organizations mostly ignore from-the-top control of rhetoric. The usual emphasis on an individual writer negotiating with a known audience and generally free to decide on matters of style, organization, and so on can hide the ways that power relations often silently control internal rhetoric. Conclusions are based on two case studies: In the later Middle Ages, professional letters had to conform to a rhetorical format that necessarily foregrounded unequal power relations. In a contemporary nuclear power station, similar power relations purposely obscure writer and audience while procedures dictate format and content.

Halpern and Liggett provide a close look at several of the new communication systems, present a model of field research through which one of the new technologies is closely examined, and draw conclusions that lead to specific changes in emphasis in the teaching of They describe instructional units that introduce the new technologies in college writing classes and the results of classroom experiments in which these units were tested. Finally they define additional research questions about the new technologies and timely approaches for answering them. They highlight the role of long-term and short-term memory, show how the choice of a composing medium influences the writing process, and discuss critical differences between speaking and writing.