1. The document introduces mind maps as a visual diagramming technique developed in the 1960s to help students take notes in a non-linear, graphical format that resembles how the brain works better than traditional note-taking. 2. A mind map is built around a central concept, with related ideas connected as branches in a radiating hierarchical structure using words, images, colors and visual elements. They are used to generate, structure and classify ideas to aid in studying, problem-solving and decision making. 3. The benefits of mind maps include helping to analyze, comprehend, synthesize and recall information in a fun and engaging way for the brain. They encourage creativity and making associations between ideas.