The document provides guidance on writing formal letters in 3 parts:
1) It outlines the typical parts of a formal letter including sender's address, date, recipient's address, salutation, subject, body, and closing.
2) It discusses the content of a formal letter including introducing the purpose in the first paragraph and providing relevant details.
3) It provides examples of beginning formal letters for different purposes like requesting repair work or seeking school admission. The document emphasizes concise, clear, and logical writing.