On Escher's Illusion Art

Maurits Cornelis Escher?June 17,1898-March 27,1972?is a famous Dutch artist,distinguished among the 20^th art circles,is known as"An unclassified artist"by later generations.Whether it is a two-dimensional plane mosaic or a paradoxical three-dimensional space,the greatest feature of Escher's works is to use the illusion that we cannot get rid of and lead us into his magical world.Escher's illusion art is no longer a"reappearance"of the beautiful things,but it contains many ideas include the natural law of infinite loop,rigorous mathematical concepts,coexistence of contradiction and harmony and so on,which guide us to re-examine the objective world and give us new inspiration.