Pablo Picasso's art in the 1910s was marked by significant experimentation and innovation, particularly with the development of Cubism, which radically altered the course of modern art. This decade was a period of intense collaboration between Picasso and Georges Braque, leading to the creation of Analytic and Synthetic Cubism, as well as the introduction of collage as an art form. In the early part of the decade, Picasso, alongside Braque, delved into Analytic Cubism (1910–1912), a phase characterized by the dissection of objects into a multitude of small facets and planes, rendered mostly in monochromatic tones of browns, grays, or blacks. This method abstracted subjects to the point where they were reduced to overlapping planes, pushing towards a form of representation that emphasized the canvas's two-dimensional surface. Landscapes were rare in their work during this period, with a preference for still lifes and interior scenes featuring musical instruments, bottles, and the human face and figure, often combined with letters to further flatten the space​ (The Metropolitan Museum of Art)​. By the winter of 1912–13, Picasso pioneered the technique of collage (or papiers collés), incorporating colored or printed pieces of paper into his compositions. This technique marked a shift towards Synthetic Cubism, which simplified and flattened spatial representations even further, using large pieces of paper to suggest objects. This era saw a fusion of color and texture, synthesizing new wholes from the dissected objects of Analytic Cubism​ (The Metropolitan Museum of Art)​. One notable work from this period is "Still Life with Chair Caning" (1912), considered modern art's first collage, where Picasso playfully incorporated a piece of printed oilcloth and a real rope, challenging traditional notions of art by blending everyday materials with painted elements. This work exemplifies the shift from Analytic to Synthetic Cubism, emphasizing the integration of different materials and textures​ (The Art Story)​. Additionally, "Ma Jolie" (1911-12) stands out as a significant piece from this era, where Picasso incorporated painted words onto the canvas, likening the painting to a poster and blurring the lines between high art and popular culture. This was a groundbreaking move that incorporated elements of advertising into fine art, further pushing the boundaries of Cubism​ (The Art Story)​. Picasso's work during the 1910s was not only innovative in terms of technique and medium but also instrumental in developing Cubism's theoretical foundations. This period laid the groundwork for future movements and continued to influence various aspects of modern and contemporary art. The collaboration with Braque and the exploration of new forms and materials during this decade underscored Picasso's pivotal role in the evolution of visual art in the 20th century.