Illustration is a diverse word that covers a number of forms such as- painting, photograph, sketch or computer generated imagery. It is any kind of art work that is used to demonstrate visual information. People have been using this form since ancient times. Examples are the cave paintings that we get to see from those times. Gradually these forms changed and people learned to use this talent for different purposes. People learned to engrave and etch, which was the beginning of organized illustration techniques. Today commercial organizations can hire best illustrators in London for various commercial purposes. The illustration agencies in UK have trained and experienced list of professionals that can help in drawing or sketching for different commercial purposes. A few popular classifications of illustration are mentioned here:
Woodcut: - This is also termed as xylography. This technique is used to imprint or engrave an image on the back of a wooden block.