This document discusses English for Specific Purposes (ESP). It defines ESP as an approach focused on meeting the specific language needs of learners for their disciplines or occupations. ESP has absolute characteristics like being designed for specific skills and not following one methodology. It also has variable characteristics like the type focusing on academics, occupations, or fields like science or medicine. The document outlines features of ESP courses like using authentic materials and being oriented to the purpose and needs of learners. It discusses concepts like the research base, language and text analysis, identifying learners' needs, and using a learner-centered methodology. In conclusion, it provides information about the author and course team.