A letter is a written or typed message prepared by a sender and directed to a specific recipient. Traditionally exchanged on paper and delivered by postal services, letters remain a formal and personal means of communication. They can range from brief notes to extended narratives and are valued for their tangible, archival nature.

Typical components

Most letters include a heading or date, an address line for the recipient, a salutation, the main body of text, a closing phrase, and a signature. Formal letters often add a subject line and the sender's contact details. The physical envelope or packet bears the postal address and postage.

  • Heading/date: places the letter in time.
  • Salutation: opens the message to the recipient.
  • Body: carries the content or purpose.
  • Closing/signature: concludes and authenticates the sender.

History and development

Written messages have existed since ancient times in forms such as clay tablets, papyrus scrolls, and later paper. The modern letter evolved with widespread literacy, standard postal systems and printing technologies. Even after the rise of electronic mail and messaging, letters retained roles in diplomacy, legal notification, and ceremonial correspondence.

Uses and examples

Letters serve many functions: personal communication (family news, condolences), business correspondence (invoices, job offers), formal notices (legal, governmental), and literary forms (epistolary novels). A physical letter can be enclosed with documents, signatures, or seals, and is often used when a permanent, dated record is needed.

Formats and variations

Common types include informal personal letters, formal business letters, cover letters for job applications, recommendation letters, and official notices. Some writers follow established templates; institutions often publish style guidelines. For advice on crafting a clear message see guidance on written message.

Distinctions and notable facts

Compared with phone calls or instant messages, letters are typically more deliberate and structured. Compared with email, paper letters are tangible and sometimes considered more authoritative for legal or ceremonial purposes. Postal delivery methods and addressing conventions remain central; more on postal services is available at postal mail and practical addressing tips at addressing guidelines.