Bachelor thesys deals with analysis of digital marketing on social media. In theoretical part we are looking into definition of theoretical knowledge about marketing and marketing communication. After that we are going to characterize digital marketing and it’s main tools.For the main tool of bachelor thesys we chose most modern form of advertisement, social networks and it’s marketing and advertisement formats. Huge part of social network marketing are influencers, who are at the moment one of main marketing communication channels on social media. In the second part of bachelor thesys we are going to look into our own work, in which we used enquiry to find out how people are receiving advertisement on social media which is promoted by influencers and how much are the people manipulated by it.