English for specific purposes in English language teaching refers to the target learners'/students' specialized English language demands. It focuses on and is directed toward English education and learning and is concerned with teaching a precise style of English to learners with particular objectives. The design and development of ESP are based on an analysis of objectives, requirements, and English-related tasks. Instructor roles include course organization, creating learning objectives,

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... raging a good learning atmosphere, and assessing students' progress. At the same time, the learners have a unique motivation in learning, subject matter expertise, and well-designed learning methodologies. When teaching ESP, some challenges/issues are specific to the instructor, such as poor-quality lectures and texts, insufficient teacher preparation, ineffective teaching strategies, and a lack of a theoretical foundation. Student-related challenges include their demographics, the rigours of acquiring ESP, their English competence, the distinctions between their language and others, and their English proficiency, their lack of vocabulary, their reliance on dictionaries, and their lack of knowledge of how to use them effectively when using ESP terms. The environment-related challenges include a shortage of instructional resources, courses with excessive students, and a heavy emphasis on examinations. This article examines students' and instructors' roles and related environmental challenges faced in teaching English for Specific Purposes, as well as the basic overview and instructional strategy of ESP in ELT (English Language Teaching). It also discusses the encounters that arise when teaching ESP due to these and other factors.