A motion comic (or animated comic) is a form of animation combining elements of print comic books and animation. Individual panels are expanded into a full shot while sound effects, voice acting, and animation are added to the original artwork. Text boxes, speech bubbles and the onomatopoeia are typically removed to feature more of the original artwork being animated. Motion comics are often released as short serials covering a story arc of a long running series or animating a single release of a graphic novel. Single release issues of a story arc are converted into ten- to twenty-minute-long episodes depending on content.