An ESL teacher (English as a Second Language teacher) is an educator who specializes in teaching English to students whose first language is not English. They help learners improve their reading, writing, speaking, and listening skills in English. ESL teachers often work in schools, language institutes, or online platforms, catering to students of various ages and backgrounds. To be effective, ESL teachers use a variety of teaching methods and materials, including games, conversations, and multimedia resources. They assess students' language proficiency and create lesson plans tailored to their needs. This role is essential in helping non-native speakers integrate into English-speaking environments.