Parts of a Business Letter. Business Letter is a letter which is used by organizations to communicate in a professional way with customers, other companies, clients, shareholders, investors, etc. Business letter uses formal language and a specific format.
How to Write Business Letter: Suppose you are writing a business letter for the very first time. You will ask yourself the question ‘how to write a business letter’. There is no need to scratch your head. All Business letters follow a fixed format. The answer to the question how to write a business letter is broadly classified into four categories.