Pablo Picasso, along with Georges Braque, co-founded Cubism, the most influential art movement of the 20th century. Before this, Picasso had already moved through his 'Blue Period' (focusing on themes of poverty and sorrow) and his 'Rose Period' (focusing on circus performers). However, his 1907 masterpiece 'Les Demoiselles d'Avignon' signaled a radical break from traditional perspective. Cubism involves breaking down objects into geometric shapes and depicting them from multiple viewpoints simultaneously, rather than a single static perspective. This was a response to the fast-paced, fragmented experience of modern life and the invention of photography, which made realistic painting feel redundant. Picasso’s prolific career spanned eight decades, during which he produced an estimated 50,000 works of art, including paintings, sculptures, ceramics, and prints, constantly reinventing himself and the nature of visual representation.