This document provides information about personal letters, including their description, kinds, and structure. It describes personal letters as a way to inform or tell something to family or friends and notes they should be written well, neatly and interestingly. It lists some common kinds of personal letters like apologies, thank you's, and congratulations. The structure of a personal letter is then outlined, including the sender's address, date, salutation, introductory paragraph, body paragraph, closing paragraph, complementary close, signature, and optional postscript. Examples of expressions used in different parts of personal letters are also provided.