This volume is a compilation of the papers presented at the 10th ASIS (American Society for Information Science) workshop on classification research. Major themes include the social and cultural informatics of classification and coding systems, subject access and indexing theory, genre analysis and the agency of documents in the ordering of knowledge, new applications of universal classification systems in electronic environments, and automated classification. The following papers are included: (1) "Wittgenstein and Indexing Theory" (Jack Andersen and Frank Sejer Christensen); (2) "Relevance Auras: Macro Patterns and Micro Scatter" (Terrence A. Brooks); (3) "Implicit Orders: Documentary Genres and Organizational Practice" (Elisabeth Davenport); (4) "A Universal Classification System Going through Changes" (Victoria Francu); (5) "Nontraditional Indexing Structures for the Management of Electronic Resources" (Elin K. Jacob and Uta Priss); (6) "Cultural Discourses of Classification: Indigenous Alternatives to the Tradition of Aristotle, Durkheim, and Foucault" (Hope A. Olson); (7) "Combining Machine Learning and Hierarchical Indexing Structures for Text Categorization" (Miguel E. Ruiz and Padmini Srinivasan); and (8) "Local Practice and the Growth of Knowledge: Decisions in Subject Access to Digitized Images" (Judith Weedman). (Each paper contains references. Includes an index.) (MES)