The illustration of manuscript books was well established in ancient times, and the tradition of the illuminated manuscript thrived in the West until the invention of printing. Other parts of the world had comparable traditions, such as the Persian miniature. Modern book illustration comes from the 15th-century woodcut illustrations that were fairly rapidly included in early printed books, and later block books. Other techniques such as engraving, etching, lithography and various kinds of colour printing were to expand the possibilities and were exploited by such masters as Daumier, Doré or Gavarni. Source: Wikipedia (en)