The Text Encoding Initiative (TEI) Guidelines for Electronic Text Encoding and Interchange are the result of over six years' work by scholars over the world. They aim to serve as the primary basis for encoding texts in electronic form for the future. The work of participants in the TEI not only involved consideration of problems of text encoding that are likely to be with us for decades to come, but also required the development of a methodology for approaching these problems. This collection documents the course of these efforts.