In giving a business presentation, many speakers think that if their idea is strong, their audience will get it readily. They feel discouraged when the audience is unable to understand their presentations. That happens a lot especially when technical experts are invited to mate a product presentation to a group of users. 　　What can we do to make a business presentation easier to understand? In my view, good presentations have always been simple and visual. In an effective business presentation, the fewer the points, the better the message gets passed on. You focus on the depth of coverage instead of the width(广度) of coverage. Additionally, you make your ideas visual and relevant, so the message is understood better and remembered longer. Great business presenters relate their ideas and concepts to their audience by using simple, powerful diagrams instead of relying on text-based slides. In fact, drawing diagrams forces a presenter to make the idea clear even at the preparation stage. It is impossible to draw a diagram when you are not clear about an idea. When your idea is clear, it is easier to transfer it. Most audiences understand a diagram faster and remember it longer. This possibly explains why most of the memorable presentations have been visual in nature.