The basic structure of a formal letter: The rules might be arbitrary, but taken together they create a formula that produces clarity. When a letter follows all the rules, the reader doesn’t have to struggle to figure out where a piece of information might be, what action they should take next, or who sent it _ everything can be found in its place. Knowing the rules of letter writing is, in that sense, akin to knowing the rules of page layout or web design _ the format of the document should support and clarify the content.
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.