For over a century, hypnosis has been a popular theme in fiction – literature, film, and television. It features in movies almost from their inception and more recently has been depicted in television and online media. As Harvard hypnotherapist Deirdre Barrett points out in 'Hypnosis in Popular Media', the vast majority of these depictions are negative stereotypes of either control for criminal profit and murder or as a method of seduction. Others depict hypnosis as all-powerful or even a path to supernatural powers.