who made Analytic Cubism ?
According to Cooper there was " Early Cubism " , ( from 1906 to 1908 ) when the movement was initially developed in the studios of Picasso and Braque ; the second phase being called " High Cubism " , ( from 1909 to 1914 ) during which time Juan Gris emerged as an important exponent ( after 1911 ) ; and finally Cooper referred to " Late Cubism " ( from 1914 to 1921 ) as the last phase of Cubism as a radical avant - garde movement .