Introduction to Course   The growing importance of English as the international business language has brought with it an increasing demand for an up-to-date course in business writing.　Yet many teachers and students feel that the teaching and learning of English for business is too specialized for them to do successfully. This course, Business English Writing, is an attempt to help students, whose major is International Business and who are learning English as a Second or Foreign Language for work purposes, become qualified to tackle the linguistic problems involved in learning English and help students who have studied English in a college as a major and are ready to get down to international business competent to learn business. 　　Unlike the other textbooks on business writing which have appeared, this course intends to deal with actual people in business situations and gives examples of the letters they would write; and more important, it offers very practical sentence structures and pattern drills most commonly used in business situations, which will enable students to find the subject easy to learn, easy to remember, and easy to adapt to the situations encountered in real life.