That writing has unique powers for promoting learning has become a given among many composition teachers and researchers. Peircean semiotics suggest that writing is one of many forms of composing available for mediating thought and activity, and that the value of any form of mediation depends on the context in which it takes place. The present study used stimulated recall to elicit a retrospective account from an alternative school student following his production of an artistic text representing his view of the relationship between the two central characters in a short story. The student's account indicates that in composing his text he (a) initiated his interpretation by empathizing with one of the characters, (b) produced a graphic representation and transformation of the relationship between the two central characters, (c) situated his text in an intertext, and (d) produced a text that both shaped and was shaped by his thinking. Furthermore, the “text” he produced through the stimulated recall interview likely involved a reconsideration as well as re-representation of the graphic text he had drawn, thus enmeshing the investigative method itself with the student's growing realization of the meaning of his work. His account suggests that nonlinguistic texts—when part of an environment that broadens the range of communication genres available to students—can help students construct meanings that are appropriate to school activities and learning.