Headings and subheadings are good organizational techniques, and they also help readers locate information. For example, students writing a design report about a performing arts center used "Main Hall Acoustics" as a main heading and placed "Background, " "Materials," and "Design Considerations" as subheadings. This way, a reader interested in the necessary materials could quickly find this information without reading the whole report.
Additionally, headings and subheadings break up your text. They provide readers with visual stopping points. These stopping points help keep your reader's attention focused on your content rather than on where they are in the text.