Born as Czaky Joszsef, he first executed decorative arts in Budapest before coming to Paris in 1908 where he worked for an art dealer. From 1909, he started exhibiting his first sculptures, following the lines of the rising cubist movement. His style of avant-gardist cubism which he describes himself as 'modern classicism' not being understood, was at first criticized. His works then became more abstract. He worked on stone, terracotta, plaster, then on bronze and occasionally onyx and crystal.