Who is recognized for the development of Abstract Expressionism?

Jackson Pollock is recognized for the development of Abstract Expressionism, a movement that emerged in the mid-20th century, particularly in the United States. Pollock's innovative approach to painting, characterized by his unique drip technique, emphasized the act of painting itself as a form of expression rather than a mere representation of external subjects. This method encouraged spontaneity and energy in the artwork, embodying the core ideas of Abstract Expressionism, which sought to convey emotion through abstraction.

His works often featured large canvases covered in complex, layered patterns that reflect a sense of freedom and individualism, representative of the post-war American spirit during the 1940s and 1950s. The movement as a whole was about breaking away from traditional artistic conventions and exploring the subconscious, making Pollock a key figure within this context. In contrast, the other artists mentioned have their own significant contributions to the art world, but they are primarily associated with other styles and movements. Picasso, for instance, is known for Cubism; van Gogh is a seminal figure in Post-Impressionism, and O'Keeffe is celebrated for her unique blend of Modernism and American regionalism.