I think that social networks are important because it is a method that enables us to communicate with our family and our friends who live in other countries, also thanks to the networks we can keep up to date with what is happening in our country or outside our country. Also through social networks, we can earn money doing promotions also if you have a business you can promote them in an easier way that is why social networks today are very important.
A social network is a social structure made up of a set of actors and one or more ties or relationships defined between them. His study dates back to the 1930s, with the creation of sociograms by Jacob Levy Moreno and Helen Hall Jennings, which gave rise to sociometry, the forerunner of social network analysis and a good part of social psychology.
Since the late 1940s, they have also been studied in depth using graph theory. Social network analysis is an interdisciplinary study in which the social and behavioral sciences, as well as mathematics and statistics, converge.