Because grease and water do not mix, the image attracts the oil-based ink while repelling water. When the stone is made wet with a sponge and a roller with ink is passed over it, the ink is deposited on the greasy drawing but not on the wet stone. This type of printing is so sensitive to grease that if a finger is placed on the surface, enough grease is transferred and as such, the fingerprint will attract the ink. Lithography's main advantage is the great number of prints that can be pulled. Eugene Delacroix, Edouard Manet, Henri de Toulouse-Lautrec and Edvard Munch are artists who all tried their hand at planography printing in one form or another.
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