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.

The rhetorical ideas inherited from the Greeks have established the notion that skilled use of language is always indicated by eloquent expression, and that silence is either an aberration or a lack of skill. As we penetrate the silence that has surrounded one of the great civilizations of the earth, however, and look at Egyptian rhetoric, we find alternative views on what makes a skilled speaker. While the Egyptians esteemed eloquent speaking, a skill that in fact had a very high value in their society, Egyptian rules of rhetoric also clearly specify that knowing when not to speak is essential, and very respected, rhetorical knowledge. The Egyptian approach to rhetoric is thus a balance between eloquence and wise silence. Egyptian rules of speech also strongly emphasize adherence to social behaviors that support a conservative status quo. For the Egyptians, much more than for the Greeks, skilled speech should support, not question, society. The few studies of Egyptian rhetoric which have previously been done discuss some of the moral components of that rhetoric and the importance of silence. The current study looks at Egyptian attitudes toward language as both a magical and a practical element of life, and in addition this study places the rules of Egyptian rhetoric solidly within the Egyptian social system.