This book explores the cognitive effects of social media on young voters during the Jakarta Governor Election in 2012. It highlights the growing influence of social media in political participation, facilitating direct communication between candidates and voters. The literature review examines previous studies on social media’s role in elections and related media theories. The methodology employs a mixed-methods approach, combining content analysis and surveys to assess the impact of social media exposure on voter engagement. The analysis categorizes election-related information and engagement features, ensuring reliability through structured coding. Findings reveal that increased social media exposure enhances political awareness and trust in electoral content, with a strong correlation between social media use and voter familiarity with candidates. The study concludes that social media significantly influences voter decision-making, particularly through engagement features like likes and comments. It also suggests further research on the impact of different candidates’ social media strategies on election outcomes.