Presentation slides are visual aids used to support a speaker's message during a presentation. They typically consist of a series of individual pages or screens that display text, images, charts, and other multimedia elements. These slides help to organize information and make it easier for the audience to follow along. Common software for creating presentation slides includes Microsoft PowerPoint, Google Slides, and Apple Keynote. Each slide can focus on a specific point or topic, allowing the presenter to convey their ideas clearly and effectively. Well-designed slides enhance engagement and retention of information for the audience.