The document discusses different avant-garde art movements that emerged in Europe following World War 1. It provides brief descriptions of 12 avant-garde styles including Futurism, Expressionism, Cubism, Dada, Surrealism, Fauvism, Constructivism, Conceptual Art, Land Art, and Minimalism. The movements generally aimed to reject traditional styles and find new ways of artistic expression, being inspired by science and technology. They developed new rules and assumptions about how to approach and create art.