This document discusses English for Specific Purposes (ESP) and the training of ESP teachers. ESP has developed its own methodology based on meeting the specific language needs of learners for their professions or academic studies. ESP courses are goal-directed and constrained by time. ESP teachers play various roles including teacher, course designer, researcher, collaborator, and evaluator. Training for ESP teachers includes selection, continuing personal education, general professional training, and special training in teaching a foreign language with an emphasis on skills, information, and theory.