Pollock’s painting technique highlights the most significant aspect of gestural abstraction—the emphasis on

Pollock’s painting technique highlights the most significant aspect of gestural abstraction—the emphasis on the creative process.
The other name for gestural abstraction is action painting - it means that you don't draw or paint carefully on the canvas, but rather smear and splash the paint all over it in order to create odd but artistically beautiful paints which are rather abstract. Well, Pollock quite enjoyed this form of painting as well, which is obvious in his work.

He developed the concept of linear perspective, and he had the ability to solve architectural problems using mathematics.