During the past 10 years, the field of multimedia learning has emerged as a coherent discipline with an accumulated research base that has never been synthesized and organized. This reference constitutes an original work devoted to comprehensive coverage of research and theory in the field of multimedia learning. It focuses on how people learn from words and pictures in computer-based environments. Multimedia environments include online instructional presentations, interactive lessons, e-courses, simulation Games, virtual reality, and computer-supported, in-class presentations.