The document discusses mind mapping, which is described as an effective and simple thinking tool. It provides an overview of how mind maps work by utilizing both sides of the brain and different cognitive functions. Some key aspects of mind maps discussed include starting in the center of the page, using images and colors, and having main branches radiate out from the central image with sub-branches at the ends. The document also outlines various uses of mind maps and their benefits, such as summarizing information, brainstorming, note-taking, and presenting information visually.