[eng] Due to the rise of the Internet and, as a result, the emergence of social media platforms, a new figure known as an influencer has emerged. The primary goal of this figure is to share and enlighten users of digital networks about their experiences, views, and preferences. Influencers leverage their followers by publishing on online social networks. Influencer marketing is a new marketing tool that has emerged because of the influencer's authority. Influencer marketing is the collaboration of brands and influencers for product or brand promotion on the influencer's social media platforms. As a result, brand recognition has increased. Through the exposition of real cases of successful influencer marketing campaigns, I wanted to show the power of this marketing tool when it is used strategically and following all the steps explained throughout this thesis.