There are several different styles and approaches to abstract art, including:

Expressionist abstract art: This type of abstract art is expressive and emotional, often featuring bold colors and gestural brushstrokes.
Minimalist abstract art: This type of abstract art is characterized by simple, geometric shapes and a limited color palette.
Color field abstract art: This type of abstract art is characterized by large, flat areas of color that fill the canvas.
Op art: This type of abstract art is characterized by optical illusions created through the use of geometric shapes and patterns.
Abstract expressionism: This type of abstract art is expressive and gestural, featuring energetic brushstrokes and drips.