What are the 10 types of letter?

The ten types of letters include:

1. Formal Letters - Used for official communication, such as Job Applications or complaints.
2. Informal Letters - Casual correspondence among friends or family.
3. Business Letters - Professional communication between companies or individuals.
4. Cover Letters - Accompany job applications, highlighting qualifications.
5. Thank You Letters - Express gratitude for gifts, favors, or assistance.
6. Resignation Letters - Inform employers of an employee's decision to leave.
7. Recommendation Letters - Endorsements for a person's skills or character.
8. Apology Letters - Express remorse for a mistake or misunderstanding.
9. Invitation Letters - Request attendance at events such as weddings or parties.
10. Love Letters - Personal expressions of affection and emotion.