Dadaism, a movement characterized by its anti-art stance and rejection of traditional artistic conventions, arose as a response to the disillusionment and chaos of the post-war era.

Rivera's mural cycle, titled 'The History of Mexico', depicts key moments in Mexican history, with a focus on the Mexican Revolution and its impact on the country's social and political landscape.

Banksy, known for their anonymous street art and subversive graffiti, frequently uses their work to address political and social issues, criticizing consumerism, capitalism, and the establishment.

The Guerrilla Girls utilized poster art as their primary medium, creating visually striking and thought-provoking posters that addressed issues of sexism and gender inequality in the art world and beyond.

Kara Walker's work often explores themes of identity, race, and the African diaspora, using silhouettes and other visual elements to address historical and contemporary issues related to race and representation.

Ai Weiwei's 'Sunflower Seeds' installation consists of millions of hand-painted porcelain sunflower seeds, highlighting the tension between individuality and conformity within a mass-produced society.

Jenny Holzer's work frequently employs text-based art and public installations to address political and social issues, using language as a tool for protest and activism.

The Situationist International often employed collage as their primary artistic medium, creating visually striking and thought-provoking images that critiqued consumerism, capitalism, and the spectacle of modern life.

Joseph Beuys' work often explores themes of power structures, social responsibility, and the relationship between the individual and the state, using performance art and other unconventional artistic practices.

The Fluxus movement primarily utilized Fluxus Events as their artistic medium, which were interdisciplinary performances that often involved audience participation and challenged traditional notions of art and artistic practice.

Trevor Paglen's work frequently explores themes of surveillance, privacy, and the digital age, using photography, data visualization, and other artistic practices to shed light on hidden systems of control and power.

The Yes Men primarily employ subvertising as their artistic medium, creating fake advertisements and corporate logos that satirize and critique consumerism, capitalism, and corporate power.

Banksy's work frequently employs humor and satire to address political and social issues, using graffiti, street art, and other unconventional artistic practices to critique consumerism, capitalism, and the establishment.

The Art Workers' Coalition primarily utilized manifestos as their artistic medium, creating written statements that outlined their demands for social and political change, and critiqued the art world's elitism and commercialization.

Doris Salcedo's work frequently addresses themes of displacement, migration, and the refugee experience, using sculpture, installation, and other artistic practices to explore the human cost of violence and political oppression.