English for specific purposes (ESP) refers to the field of language teaching that aims to support learners with the linguistic needs of their study or work area, and research into language use in work or study areas. ESP instruction does not aim to develop a general linguistic competence but rather to develop the particular set of linguistic competencies that will enable learners to enter or make progress in their chosen field of study, such as economics, profession, such as accounting, or occupation, such as tour guiding. For example, instruction in English for Accounting might include a focus on the technical vocabulary and written genres used in the profession, such as financial reports. ESP instruction often groups learners in relation to their roles in target settings. For example, in teaching an English for the Heath Care sector program, learners might be divided into their specialisms, with one group receiving instruction in English for nursing and another group receiving instruction in English for pharmacists.

Needs analysis is a key course design process in ESP. Needs analysis is both a pre-course design procedure as well as a procedure used in course refinement to ensure the continuing relevance of instructional content. Analysis is typically made of communication in the target situations that learners face or will face in their study or work domain (target situation analysis, TSA) and the learners’ current level of linguistic competencies in relation to the level needed for successful participation in the target situation (present situation analysis, PSA). In addition, analysis may be made of learner subjective needs and the teaching situation. The latter may include analysis of the teachers’ knowledge of ESP, for example. Questionnaire and interviews are typical data collection techniques, but often these are supplemented with other techniques. For example, job shadowing might be used in a TSA in order to gain an understanding of the types of communicative events and demands related to a specific role in an institution, and performance tests might be used in PSA to gauge how much learners already know and can do in relation to a particular key task in the target situation.

Although it is possible to teach ESP to learners with beginners’ levels of English proficiency, most ESP courses are for learners with intermediate or advanced levels of English proficiency. Learners are most often adults or young adults. A fundamental assumption is that learners will find ESP instruction motivating because it integrates language teaching with contexts, texts and activities from their work or study area of interest. ESP courses can be devised for pre-experienced learners, that is, learners with little or no experience of the target setting, during-experience learners, who are taking the ESP course at the same time they are working or studying in a specific field and post-experience learners, who have experience of working or studying in a field but are no longer doing so.