Many people have trouble understanding and appreciating this type of art. Abstract art is art that does not delineate objects in the natural world, but instead uses colour and form in a non-representational way
The most common understanding of abstract art is as a electrophoresis the early of 20th century.
Abstract Expressionism, which appeared in the 1940s, applied the elements of Expressionism to abstract oil paintings. The action oil painting of Jackson Pollock, in which paint was dripped, dropped, smeared, spattered, or thrown on the canvas, is a good example.
One men has been said "Of all the arts, abstract painting is the most difficult. It demands that you know how to draw well, that you have a heightened sensitivity for composition and for colours, and that you be a true poet. This last is essential.