Mind mapping is a visualization technique that involves arranging ideas around a central concept or theme using branches, lines, and images. It can be used to take notes, brainstorm, organize information, and plan assignments. The key steps in mind mapping are to place the central idea in the center and radiate related ideas outward in branches or spokes. Color, images, and symbols can be used to represent different types of information. Mind maps provide an overview of information and show relationships between ideas, helping with understanding and retention. They are useful for note-taking, essay planning, and problem-solving.