At the beginning of the 20th century, artists from all over Europe made the pilgrimage to Paris. The French metropolis had become the hub of the international avant-garde. A network of artists and gallerists created a breeding ground for the emergence of new movements in Modern Art, which were presented in startling exhibitions. In 1912 Paul Klee travelled to Paris. There he encountered the works of the Cubists and discovered in Robert Delaunay’s studio the colour fields of his abstract compositions. He discussed his travel plans with his school friend Ernst Sonderegger, who was living in Paris. His busy program was recorded in his diary.