Guerrilla Girls instance of collective pseudonym
Guerrilla Girls is an anonymous group of feminist, female artists devoted to fighting sexism and racism within the art world. The group formed in New York City in 1985, born out of a picket against the Museum of Modern Art the previous year. The core of the group's work is bringing gender and racial inequality into focus within the greater arts community and society at large.  The Guerrilla Girls employ culture jamming in the form of posters, books, billboards, lectures, interviews, public appearances and internet interventions to expose disparities, discrimination, and corruption (the latter includes conflicts of interest within museums). They also often use humor in their work to make their serious messages engaging. The Guerrilla Girls are known for their "guerrilla" tactics, hence their name, such as hanging up posters or staging surprise exhibitions. To remain anonymous, members don gorilla masks. To permit individual identities in interviews, they use pseudonyms that refer to deceased female artists such as Frida Kahlo, Käthe Kollwitz, and Alice Neel, as well as writers and activists, such as Gertrude Stein and Harriet Tubman. According to GG1, identities are concealed because issues matter more than individual identities, "Mainly, we wanted the focus to be on the issues, not on our personalities or our own work."Members and names
Membership in the New York City group is exclusive, by invitation only, based on relationships with current and past members, and one's involvement in the contemporary art world. A mentoring program was formed within the group, pairing a new member with an experienced Guerrilla Girl to bring them into the fold. Due to the lack of formality, the group is comfortable with individuals outside of their base claiming to be Guerrilla Girls; Guerrilla Girl 1 stated in a 2007 interview: "It can only enhance us by having people of power who have been given credit for being a Girl, even if they were never a Girl." Men are not allowed to become Guerrilla Girls but may support the group by assisting in promotional activities.Guerrilla Girls' names are pseudonyms generally based on dead female artists. Members go by names such as Käthe Kollwitz, Alma Thomas, Rosalba Carriera, Frida Kahlo, Alice Neel, Julia de Burgos, and Hannah Höch. Guerrilla Girls' "Carriera" is credited with the idea of using pseudonyms as a way to not forget female artists. Having read about Rosalba Carriera in a footnote of Letters on Cézanne by Rainer Maria Rilke, she decided to pay tribute to the little-known female artist with her name. This also helped to solve the problem of media interviews; the group was often interviewed by phone and would not give names, causing problems and confusion amongst the group and the media. Guerrilla Girl 1 joined in the late 1980s, taking on her name as a way to memorialize women in the art community who have fallen under the radar and did not make as notable as an impact as the names takes on by other members. For some members like "Zora Neale Hurston", or Emma Amos, identities have only been made public posthumously.
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