Abstract expressionism is distinguished from other art movements by emphasizing spontaneous, emotional expression and non-representational forms. Unlike movements that preceded it, such as Cubism or Surrealism, abstract expressionism focused on the act of painting itself as an essential aspect of the artwork.

This movement is characterized by its large-scale works, dynamic compositions, and the use of abstract forms to evoke a wide range of emotional responses. The creation process was often as important as the finished piece, with many artists embracing the unpredictability and physicality involved in their methods. This approach allowed for a raw, unfiltered exploration of the human psyche, making each piece a unique and personal expression of the artist's inner world.

Original art from the abstract expressionist period is considered groundbreaking because it broke away from traditional artistic conventions and introduced new ways of thinking about and creating art. This movement paved the way for subsequent contemporary art practices, emphasizing individual expression and the intrinsic value of the creative process. Abstract expressionism's originality, emotional depth and innovative techniques continue to influence and inspire artists and collectors today.