Mind mapping is a diagramming technique for visually organizing information around a central concept. It uses a non-linear graphical layout that is meant to mimic the way the brain naturally thinks and recalls information. Some key aspects of mind mapping include having a central idea with branches radiating out to show sub-ideas and sub-topics, using images and colors to enhance recall, and allowing for organic growth of ideas without strict hierarchies or orders. The technique aims to take advantage of both left and right brain thinking to improve processing and retention of information.