Though printed texts were well known to the Chinese and Koreans at the time, it is unclear whether Gutenberg knew of these techniques or invented them independently. Gutenberg's methods were certainly more efficient, leading to a boom in the production of texts in Europe, in large part due to the popularity of the Gutenberg Bibles, the first to be mass produced, in 1455?. The Gutenberg Bibles surviving today are the oldest surviving printed books. A book produced between the first work of Gutenberg and the end of the year 1500 is called an incunabulum.
Gutenberg's name is found in the [Gutenberg Galaxy]? and in Project Gutenberg.