Companies use a variety of videos to achieve their communication and marketing objectives. These videos include promotions to showcase their products or services, customer testimonials to build trust, explanations to clarify concepts, demonstrations to illustrate product use, tutorials to provide how-to instructions, brand videos to reinforce identity, event videos to cover events, educational videos to share knowledge, and interview videos to give the floor to experts and opinion leaders. Each of these types of video serves a specific purpose in a company's overall communications strategy.