Printing sped up production of books and made them cheaper which allowed for faster spreading of knowledge and science. It was very important in the development of the Renaissance, Reformation, the Age of Enlightenment, and the Scientific Revolution. Read all about Chinese invention of printing.
Printing is one of the most important inventions ever. It replaced writing manuscripts by hand and allowed for much faster, cheaper and efficient reproduction of books especially in Western cultures which have more limited alphabets.
Johannes Gutenberg was an inventor of mechanical movable type which started the Printing Revolution and changed the face of the world. His Bible is, even today, considered a printed product of high aesthetic and artistic qualities.