This report, which includes papers by John Munby, Henry Widdowson and Tom Jupp, was compiled following an international ESP seminar organised in Bogotá, Colombia, in April 1977. The Editorial notes that, while ESP was seen as relatively new, it was also known to be an 'extension and development of insights', rather than a radically different methodology, and also involved a variety of approaches, not a 'harmonised body of doctrine'.