The dedicated art dealer Rudolf Zwirner and the artist Jakob Mattner meet to look back at his over 40-year-long career. They discuss the fascination with perspective, the poetic means of light, the change of position, and procedure of reversal through which the essence of art can be achieved without withholding information from the viewer: the secret of transcendence, its cause and effect. Text in English and German. 53 colour, 11 b/w illustrations
