Mass communication is the process in which a person or a group of persons send information through mass media to a large and varied audience at the same time. And in this medium is include newspaper, magazine, book publishing, as well as radio, television, film and internet. Feedback for mass communication is usually slow and indirect in comparison to interpersonal communication.
The study of mass communication is the approach on how the information of mass communication, persuade, or affect the behavior, attitude, emotion or opinion of the people that receive the information. The process of mass communication has four components, Sender, Message, Medium and receiver. The process is complete when the receiver gets the message. The way we receive the messages have changed indeed, from pictures on walls of caves, to messages sent to millions of people at the same time.
I found many videos about mass communication but, I attach two. one is short if you don’t have time to watch and one long, if you have time and want more details.