
At a time when Impressionism had "progressed" from the avant-garde into the mainstream, and Fauvism was ruling the Salons, Picasso and Braque instigated an avant-gardist movement that would all but insist that the viewer re-evaluate the status of art.Gris, however, would command equal status with Picasso and Braque when the Synthetic phase came to the fore. The cadre of Cubist painters, meanwhile, have been put by critics into one of two camps: the "Gallery Cubists", namely Picasso and Braque, and a "second tier", the so-called "Salon Cubists", namely Juan Gris, Jean Metzinger, Fernand Léger, Robert Delaunay, and Albert Gleizes.

Following a two-year period of experimentation where Cubist artists took their lead from the faceted landscapes of Paul Cézanne, Picasso and Braque retreated to the studio where, over the ensuing two years, they honed the style of Analytic Cubism. Analytic Cubism defines a style of Cubism that fractured the subject into multi-layered, angular, surfaces that brought still lifes and portraiture close to a point of total abstraction. Cubism was a movement that ran for close to two decades, but historians have tended to single out for special consideration its two most important phases: the Analytic phase (1910-12) and the subsequent Synthetic phase (1912-14). It would become the first authoritative text on Cubist history and practice and it was here that the term Analytic Cubism was first introduced. In 1920 the leading promoter of Georges Braque's and Pablo Picasso's work, Daniel-Henry Kahnweiler, published his book Der Weg zum Kubismus ( The Rise of Cubism).
