A course on international communication and constructed languages is described. General topics covered in the course included the roles various national languages have played in international communication, special forms of English, language practices and policies in international organizations and conferences, and the history and classification of constructed languages. Esperanto was taught as a specific example of a constructed language. Included in the course description are: (1) an outline of the course structure, (2) a list of the lectures given on various aspects of international communication, and (3) a description of the Esperanto part of the course. A bibliography of the University of Illinois holdings on these topics is included. (Author/AMH)