Kind of a Business Letter
Personal Letters
Application letter , interview letters,
reference letters ,letters of appointment, confirmation letter, promotion letter, retrenchment, resignation.
The correspondence of a company secretary, correspondence with central government
Letters to press
Non- Personal Letter
Enquiries and replies, orders, their execution, credit and status enquiries, complaint and adjustment, collection letters.
Circulars letters, Sales letters
Bank correspondence, insurance correspondence, import export correspondence, agency correspondence.