PowerPoint is used by over 500 million users to create over 30 million presentations each day worldwide, primarily for business and educational purposes. When creating a presentation, the presenter should consider the audience, their existing knowledge, the learning objectives, and the presentation conditions. Effective presentations use simple slides without fancy transitions, full sentence headlines written as assertions, and the easiest to read fonts like Arial Narrow. PowerPoint is commonly used for classroom teaching, tutorials, seminars, meetings, conferences, sales and marketing, events, corporate meetings, training, and information kiosks.