Why have whiteboard videos become so popular? Back to: Whiteboarder Back to Course Whiteboarder Next Lesson How explainer whiteboard videos are vital to growing your business? If you didn’t know already, an explainer video is a short animation video that businesses use to get their brand stories across in an attention-grabbing manner. Back to Course Whiteboarder Next Lesson How explainer whiteboard videos are vital to growing your business? If you didn’t know already, an explainer video is a short animation video that businesses use to get their brand stories across in an attention-grabbing manner.