On Gutenberg and the
invention of printing see:
Keio University's own copy available online;
The site of the Gutenberg Museum in Mainz.
Some information on the technique of printing is found on several websites, for instance:
The making of typesA resource on type-making has been made for the Huntington Library.
The history of paper-making
History of paper-making specifically in EnglandThe British Association of Paper Historians
The American Museum of Paper Making
© The British Library