What words and images can do alone and together, how they communicate, is what the Thumbnail Process is all about. This chapter recounts the visual and verbal thinking that led up to the formalization of that process. The prototype phase of product development can be viewed as a period of active experimenta­ tion with novel graphic formats for text presentation and visual display. This preparation Joe Godlewski viewed as a series of “modeling exercises that we went through to kind of get ourselves up to the Thumbnail Process,” exercises that were investigations about “how visuals work,” and at the same time provided the basis upon which this “movement toward a visual/verbal philosophy began to jell.” Through this “movement,” Rob Wittig said, we “codified” a working set of visual/verbal principles. The Thumbnail actualized these principles.