This report investigates the impact of social media practices on the brand image of Tesco Plc in the UK. It begins by highlighting the rise of digital media and the importance of social media marketing. The study aims to analyze how Tesco utilizes social media to improve its brand image, setting objectives to assess the role of social media in the retail sector, determine Tesco's social media practices, and gain insights into building brand image. Employing a descriptive design with primary data collected through questionnaires from 50 Tesco customers and secondary data from books and online articles, the research uses thematic analysis. Key themes include customer preference for Tesco products, the influence of Tesco's Facebook campaigns, and the effectiveness of its social media practices compared to competitors and other marketing tools. The study concludes that social media significantly impacts Tesco's brand image, enhancing brand loyalty and purchase behavior, and recommends that Tesco stay updated on social media trends and emphasize customer-centric schemes.