An extensive body of scholarship has documented the way disciplinary texts and activities are produced and mediated through their relationship to a wide array of extradisciplinary discourses. This article seeks to complement and extend that line of work by drawing upon Witte's (1992) notion of intertext to address the way disciplinary activities…

Those who focus on the study of visual information continue to search for effective ways to conceptualize that inquiry. However, many visual examples are better categorized as visual/verbal collaboration, complicating analysis. When analysis is based on the assumption that visual and verbal modalities perform in similar ways, important…