In the 15th century, printing presses were established in 77 Italian cities and towns. At the end of the following century, 151 locations in Italy had seen at one time printing activities, of which 130 (86%) were north of Rome. During these two centuries a total of 2894 printers were active in Italy, with only 216 of them located in southern Italy. Ca. 60% of the Italian printing shops were situated in six cities (Venice, Rome, Milan, Naples, Bologna and Florence), with the concentration of printers in Venice being particularly high (ca. 30%).