Informal letter is a letter written to a friend or family member. It is used for non-official or personal purposes only. The language is informal and does not have many restrictions on the expressions used. However, there is a format in which informal letters are to be written.
Format of an informal letter:
Explanation of the format:
The first thing to write is your address, i.e., writer's address and the sender’s address. We have to write the address on the left-hand side of the page at the very top. The address should be accurate and complete with the state and country mentioned. Even when writing to close friends or relatives, the address must be written so that they can reply to the letter easily.