The main idea is to design plain-language materials that are clear, readable, and accessible to the widest audience. That means using simple sentences and common vocabulary so readers don’t have to decode specialized terms. Using active voice helps show who is doing what, making statements direct and easy to follow. Presenting one idea per sentence keeps each thought crisp, which reduces confusion. Large fonts and visuals support quick reading and comprehension, especially for diverse readers. Including translations as needed addresses language differences, and conducting audience testing ensures the materials actually meet the users’ needs in real settings. Together, these practices make information easier to understand, retain, and act on. Other options drift away from readability: they rely on complex sentences and technical jargon, or push long sentences, which increases cognitive load. They also suggest avoiding translations or audience testing, which ignores real-world accessibility and effectiveness.