Final answer:
Pablo Picasso and Georges Braque are two central figures in the Cubist movement, which they both developed through collaboration and individual exploration of new perspectives and geometrical form.
Step-by-step explanation:
Two significant Cubist artists are Pablo Picasso and Georges Braque. These artists are instrumental in the development of Cubism. Picasso's 1907 painting, Les Demoiselles d'Avignon, is often considered a cornerstone of the movement, showcasing his radical approach to form and perspective. Braque, who worked closely with Picasso, was pivotal in evolving Cubism through his exploration of geometry and simultaneous perspective, particularly with his analytic Cubism period that began in 1909. Together, they disrupted traditional representation in art and laid the groundwork for one of the most influential movements in the history of modern art.