Letter-writing is an essential part of communication, an intimate part of experience. Each letter-writer has a characteristic way of writing, his style of writing, his manner of expressing his thoughts, ideas, etc. but it must be emphasized that the routine of official or semi-official business letters require certain accepted idiom, phrases, patterns and grammar which are found in general use today. Certain skills, therefore, must be acquired by practice, and details of writing must be carefully and thoroughly learnt