What does the term action painting mean in relation to Jackson Pollock’s work?

The term action painting refers to a style of Abstract Expressionism characterized by spontaneous, instinctual, and dynamic techniques, such as dripping, spilling, or vigorously brushing paint onto a canvas.12

In relation to Jackson Pollock, the term is deeply significant for several reasons:

• Pioneering Technique: It is widely recognized that Pollock’s "drip" paintings, which he began in 1947, paved the way for the gestural techniques that define action painting. By pouring or dripping paint onto a flat canvas, he recorded the force and scope of his physical movements, creating complex linear patterns.13
• The Act as Art: The term was coined by art critic Harold Rosenberg, who viewed the canvas as "an arena in which to act." For action painters, the physical act of painting was as significant as the finished work itself, serving as a direct expression of the artist's creative forces.14
• Creative Philosophy: Pollock’s own belief that "painting is a state of being" and that "every good painter paints what he is" aligned with Rosenberg’s view that the artist organizes their emotional and intellectual resources through the act of painting.4