Propaganda on social networks such as Facebook and Twitter is a powerful tool for manipulating public opinion according to a set of studies carried out within the Computational Propaganda Research Project by the Oxford Internet Institute, of the Oxford University.To reach this conclusion, on the other hand nothing surprising, researchers have analyzed the use of social networks for the manipulation of public opinion, between 2015 and 2017, in Brazil, Canada, China, Germany , Poland, Taiwan, Russia, Ukraine and the United States. Bernays, women smokers and eggs with bEIcon Today few know Edward L.Bernays, father of the theory of propaganda and public relations , who in 1928 wrote that "the conscious and intelligent manipulation of organized habits and opinions of the masses is an element of importance in democratic society.Those who manipulate this hidden mechanism of society constitute the invisible government that holds the true power that governs the destiny of our coun...