Concept mapping is a visual tool to show relationships between topics and ideas. It structures concepts around a central topic with connected keywords or phrases in different layers based on importance. Different shapes or colors denote the layers, with the main topic in the center connected to the first layer of key concepts, which are then connected to more specific concepts in the second layer. To create a concept map, a main topic is placed in the center and surrounded by the most important keywords or concepts in the first layer, with those connected to more detailed concepts in subsequent layers using consistent shapes or colors to distinguish the levels.