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Woodcut printing has been done for many centuries. In the 15th century when Johannes Gutenberg improved the process, he had to put letters together. This work was called typesetting. Each letter was in a block of metal, that was fixed in a frame. He could then move paper and ink over it, much like a stamp. This method was called letterpress The letters would leave ink on the paper in the shape of the letters, creating text or illustrations. Today printing presses are automated.
- Lefebre L & Martin H-J. 1990. The coming of the book. new ed, London.