In this final paper, with definition of traditional marketing, guerrilla marketing and other related terms, a categorical system is established as sort of introduction to the topic. Also, it will be spoken about the position of guerrilla marketing in the modern way of business, about differences between traditional and guerrilla marketing, and the theoretical part will be substantiated with concrete examples. Almost all companies in these days want to achieve the highest possible profits with minimal investment, and they will try to do it in every possible way. One of those ways is guerilla marketing, a relatively new concept in the world of marketing, and it is a strategy by which a company advertising new product or service with minimal costs, in order to achieve maximal impact. Guerrilla marketing is a unique and interesting way, using creative solutions and strategies, attracts the attention of the target group and leaves a greater impression that eventually leads to buying a specific product. As technology increasingly progress, marketing also began to base on the digital promotions, especially on social networks, where the company saw an opportunity to attract the attention of a huge number of people in one place, who are potential buyers of their products and services. The aim of this paper is to explain in more details the strategy of guerilla marketing, its types, and when, how and why is it best to use this form of marketing.