As electronic text files increase in number and diversity, the problem of devising a more effective information retrieval interface grows more important.Future designs may draw upon cognitive theories of categorization and metaphor to understand how users interact with text-both paper and electronic. Relevant literature in cognitive psychology and information science suggests the importance of the user's physical environment in thinking about abstract entities, such as categories of documents. Empirical studies have established a basis for understanding how we think about, file, remember, and locate text. Results from a study of 20 historians-an exemplary group in terms of their close studies of texts and the broad scope of their inquiriesimply the importance of metaphors for storage and retrieval of documents. The study found that metaphors and subjective categories were frequently applied to documents collected and created by these scholars. Two physical factors-spatial configuration and document form-were often considered before topic in determining document storage locations in the office. Developers of information systems should consider qualitative aspects of cognition in their designs. System developers might also consider segmenting the audience for computer interfaces, as well as designing generic tools that apply to all users.