Feminist theory aims to understand the nature of inequality and focuses on gender politics, power relations and sexuality. While generally providing a critique of social relations, much of feminist theory also focuses on analyzing gender inequality and the promotion on women’s rights, interests, and issues. Themes explored in feminism include discrimination, stereotyping, objectification, oppression, and patriarchy.
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Here is a great place to see feminist's art:

http://www.guerrillagirls.com/

This is the web site of the guerrilla girls which is a group of feminist artists who produce posters, stickers, books, and other printed projects that expose sexism and racism in our culture.