Maurits Cornelis Escher (1892 – 1972) was a brilliant graphic artist. Known for mind-bending [and sometimes headache inducing!] structures, Escher’s art spanned lithographic prints, woodcuts and wood engraving. He produced thousands of drawings and sketches and has left an inspirational body of work which continues to confound and delight.
Escher decided to bypass his original study of architecture and pursue graphic art instead. Perhaps Gaudi was inspired to follow the opposite path :)
P.S> M. C. Escher was a lefty ;)
Photo source: Balcony (1945 Lithograph); Drawing Hands (1948 Lithograph)