The communication between two persons through letters is an instance of?

Question: The communication between two persons through letters is an instance of?

The communication between two persons through letters is an instance of written correspondence. Written correspondence involves the exchange of information, thoughts, or messages between individuals using written means, such as letters, emails, or text messages. This form of communication allows for thoughtful expression, preservation of records, and the ability to convey detailed or complex information. It provides a tangible and permanent record of communication that can be referenced or revisited over time. Written correspondence through letters specifically has been a traditional and widely used method of long-distance communication, offering a personal touch and the ability to convey emotions in a tangible format.