Motion graphics design combines graphics and animation to create engaging moving visuals, relating to aspects such as animation, which brings graphics to life; video production, integrating motion graphics into storytelling; user interface (UI) design, enhancing digital interfaces with animated elements; and marketing, creating promotional videos that capture attention. Key principles include animation (bringing elements to life), timing (controlling pace for storytelling), visual effects (adding flair to enhance appeal), and storytelling (conveying messages through dynamic visuals).