Presentation aids are tools used to enhance a speaker's message during a presentation. They can include items like slides, charts, graphs, and videos, which help clarify complex information and engage the audience. These aids can make the content more memorable and easier to understand. Using presentation aids effectively can improve communication and retention of information. They should be clear, relevant, and not overly complicated, ensuring that they support the speaker's points rather than distract from them. Properly designed aids can significantly enhance the overall impact of a presentation.