Overview
The purpose of a letter is often to inform or communicate an experience or point of view to the reader.
Letters give the reader information about a certain topic and can also be used to persuade the reader; for example, to ask for the writer’s opinion
to be considered.
Letters can be formal; for example, if the letter is being used to apply for a job. Letters can also be more informal; for example, if it is a letter to someone you know well to tell them about your holiday and persuade them to try
visiting the same place.
The ways you use language and vocabulary when writing a letter will depend on the audience and the purpose you are writing for.