If you're buying animation art, know the product. A production "cel" is a hand-painted picture made for a movie or TV cartoon and is one-of-a-kind. The many pictures on the cels were used to show motion. A "sericel" is a special lithographed or hand-painted piece made in limited editions to sell as art. Sericels were never used to make a cartoon. A "lumicel" is a special product made by Disney. It's a framed cartoon image that talks and moves when activated.