How can a letter be described as a form of communication?

A letter can be described as a form of communication because it is primarily recognized as a written message, which often conveys information, thoughts, or feelings from one individual to another. The written format of a letter allows the sender to express themselves clearly and in detail, making it a versatile tool for various types of communication, whether personal or professional. Letters can be thoughtfully crafted, allowing for a depth of expression that might not be possible in other forms of communication. Additionally, while many letters are sent by mail, they can also be shared in digital formats. This multifaceted nature of letters underlines their significance in conveying messages effectively.