The aim of the Course is to present the principles of Teaching English for Specific Purposes (or TESP), with reference to different teaching contexts (e.g., English for general and specific academic purposes, English for general and specific occupational, vocational, or business purposes, etc.), as well as the close ties between TESP and the disciplines of adult education and differentiated instruction and learning. Particular emphasis is placed on raising a practical awareness of different teaching contexts, as well as of the various types of needs analysis conducted. In the Course we will also present ways of analyzing language (register analysis, discourse analysis and, preeminently, genre analysis) and incorporating them in our teaching methodology. We will also refer to the field of teaching English as an international lingua franca, which constitutes a strong emerging area of TESP, as well as syllabus designing and assessing language learning in different TESP environments.