books.google.com - Printing is generally held to be one of the most important inventions of all time and to have helped change the course of history. It can be described as a means of giving form to and multiplying graphic signs and messages, and its extraordinary social, artistic and intellectual impact derives from its...http://books.google.com/books/about/The_British_Library_Guide_to_Printing_Hi.html?id=KXoaalwyOjAC&utm_source=gb-gplus-shareThe British Library Guide to Printing : History and Techniques
