This story is from September 21, 2010 State drawing up list of heritage buildings, sites TNN / Sep 21, 2010, 00:28 IST Follow us ...

Harbour's cartoonish diagrams, drawn on tablecloths, scrap paper or whatever comes to hand, strip buildings back to their essence, marking out how people will move around them and what they will see.

Set a time limit on your drawing. Try drawing the same composition in 15 seconds, 30 seconds, one minute, two minutes. This helps you concentrate on key elements. Try blind contour drawing.