Man Ray
Man Ray was a visual artist in the early 1900s also was a part of surrealists and Dada. He started developing his work through many photograms and he was so famous through these pieces of art work that people had then started referring to his work as "Rayograms". In the photograms that he had done, he mostly used rounded objects such as coil of wire and thumbtacks under the light to expose the shadowed photographic paper. Ray had a skill in photography before he had done anything like photograms, but at the end of the day his photos would be standing in the same line as every other photographer so he decided to differentiate his skills a bit by starting so called "Rayograms".
Christian Schad
Christian Schad was a Dada student, a realist painter. Just like Man Rays, Christian Schad became famous for "Schadograms". He was introduced to photography years before so when he was well known for the paintings, he started doing some light sensitive paper photograms. He loved to use worn out materials such as pieces of scrap paper and broken pieces of metallic materials after searching for them around the streets and in garbage cans. Once he put the worn out objects on the light sensitive paper, he did not use chemicals to speed up the reaction of the exposure like the chemicals are used today, but he left the paper to develop on the windowsill.
Laszlo Moholy-Nagy
Laszlo Moholy-Nagy was a "genius of all media". He spend his early years in the military hospital to complete his military services, whilst also studying law in the mean time, and that was the time when he created his first drawings. Through the passing time, he started attending evening classes in a free art school in Hungary. He relocated around different countries through the years whilst also finding a wife in the time. He had stopped studying law and had focused on his artists career. Nagy had his first solo exhibition in 1922. Nagy is one of the most influential experimentalists and modernists in the art world. He was influenced a lot by dadaism and on going debates of what photography could be about.