Allen Renear is an Associate Professor in the Graduate School of Library and Information Science at the University of Illinois, Urbana-Champaign, where he is head of the Electronic Publishing Research Group and teaches courses in knowledge representation and electronic publishing. Prior to joining GSLIS he was Director of the Brown University Scholarly Technology Group. Dr. Renear has been involved in electronic publishing projects and electronic publishing research for over 20 years and has published widely on topics in document engineering, text ontology, and markup semantics. He has served as President of the Association for Humanities Computing and on the Advisory Board of the Text Encoding Initiative, and was a Distinguished Visiting Fellow at the Oxford University Humanities Computing Unit. Renear was involved in the original development of the Open eBook Publication Structure (OEBPS) and has been Chair of the OeBF Publication Structure Working Group since its formation. Currently the research team he leads at the University of Illinois is applying techniques from logic and artificial intelligence to improve the functionality and efficiency of publishing systems.