To create effective mind maps for studying complex topics, candidates should start by identifying the central theme and branching out key concepts. Using colors and visuals can help organize information hierarchically, facilitating easier recall. It's beneficial to incorporate keywords, symbols, and short phrases instead of lengthy sentences, ensuring clarity and aiding memory retention. Regular review and updates to mind maps as new information is learned can also enhance their effectiveness. Lastly, integrating links to related concepts can create a comprehensive overview, enabling better understanding of complex topics.