Visual aids can be employed effectively for UPSC revision through the use of diagrams, flowcharts, infographics, and mind maps. These tools simplify complex information, making it easier to comprehend and retain vast amounts of data. Visual aids also serve as quick reference points during revision, enabling quicker recall of critical concepts. Incorporating visuals into notes can facilitate better organization and clarity. Additionally, creating charts for comparative analysis of topics encourages a deeper understanding of relationships and trends. Overall, visual aids complement textual study materials, enhancing the revision process significantly.