This research project investigates the impact of social media on consumer purchasing decisions, focusing on the case study of Arcadia. The study explores how social media platforms influence consumer behavior, brand perception, and purchasing habits. Through a comprehensive analysis of data collected from a survey of 100 respondents, the research identifies key factors that contribute to the influence of social media on consumer purchasing decisions. The findings reveal that social media plays a significant role in shaping consumer preferences, providing product information, and driving purchase decisions. The research also examines the effectiveness of social media marketing strategies employed by Arcadia and provides recommendations for optimizing their social media presence to enhance customer engagement and drive sales.