Which of the following is NOT an example of mass communication?

The correct option is Letters.

To understand why this is the correct choice, let us break down the concepts of mass communication and personal communication:

1. What is Mass Communication?
Mass communication is the process of imparting or exchanging information through mass media to large segments of the population. It is characterized by:
• A single source transmitting messages to a large, diverse, and scattered audience simultaneously.
• The use of professional channels or technology (like printing presses, broadcasting towers, or the internet).
• A generally one-way flow of information with delayed or limited feedback.
Examples of mass communication channels include:

• Cinema: Films are produced and distributed to be viewed by millions of people across the globe.
• Radio: Audio broadcasts are transmitted over waves to reach thousands or millions of listeners at the same time.
• Newspapers: Printed or digital news is distributed daily to a massive public readership.

2. What is Personal/Interpersonal Communication?
Interpersonal communication involves a direct exchange of information between two or a few specific individuals. It is highly personal, targeted, and usually allows for immediate, direct feedback.
• Letters: A letter is written by one individual and addressed specifically to another individual or a small select group. It is not intended for public broadcast or widespread dissemination to an anonymous mass audience.

Therefore, while cinema, radio, and newspapers are classic examples of mass communication, letters represent a form of personal or interpersonal communication. Thus, Letters is NOT an example of mass communication.