Expressionism is the tenency of an artist to distort reality for an emotional effect; it is a subjective art form. Expressionism is exhibited in many art forms, including painting, literature, theatre, film, architecture and music. The term often implies emotional angst. In a general sense, painters such as Matthias Grünewald and El Greco can be called expressionist, though in practice, the term is applied mainly to 20th century works.