This article describes a study that examined the tables and figures in articles from a basic research journal, The Journal of Cell Biology, and compared them to tables and figures from an applied medical journal, The New England Journal of Medicine. Comparison of graphics between the two journals shows sharp differences in terms of range of graphics types, visual consistency within and between articles, or use of color. As the articles take into account what is needed by different audiences, the graphics help to build the credibility of the journal. The study also addresses the question of how scientific visuals contribute to the persuasiveness of a writer, looking at how the graphics within an article affect the credibility or ethos of the writer.

Abstract Based on an ethnographic study of scientists at the Centers for Disease Control and Prevention, this article describes how the rhetorical invention process of a group of working scientists is strongly rooted in social collaborative processes. These writing practices of working professionals are not always synonymous with the way students entering the professions have been taught to write. Because invention is such an important aspect of the writing process, it is important to teach students the approaches to invention that are actually used in science, approaches that include a great deal of interaction, including talking to other scientists and reading journal articles. This article ends with pedagogical suggestions for teaching collaborative invention to students based on the results of the study.