What we call Photogram is an image produced without the use of a camera, depending entirely on the interaction between light, light sensitive materials and the chemical changes occurring therein – for the most part displaying shadows. The photogram appeared about eighty years ago, in the avant-garde arts during the 1920’s as an open art form, which connects painting with the photo-technical picture, but appears also in avant-garde cinema. The book explores the history of this intercultural artistic form of interest to Hungarian artists primarily tied to Moholy-Nagy László. Its objective is to give an overall picture of one of the less known chapter of universal art-history His treatises describe universal and Hungarian history of the art form as a monograph. The text is completed by a selected bibliography, the biographies of the artists producing the pictures and an explanation of technical concepts.