The document discusses the role and responsibilities of an ESP (English for Specific Purposes) teacher. An ESP teacher must gather information about their students' strengths and weaknesses. They must also be able to adapt teaching materials to suit their students' specific needs and the requirements of their institution. An effective ESP teacher should have the ability to teach different professional fields without extensive preparation time. They must remain up-to-date on the latest research in ESP fields and select appropriate teaching methodologies that involve a variety of classroom activities.