Barbara Hammer is an American experimental filmmaker based in New York City. While the majority of her films deal with feminism and other women's issues, Hammer is also considered one of the pioneers of queer cinema. Her 1974 Dyketactics was one of the first films to deal with the issue of lesbian identity.
Several of Hammer's later films deal with aging and her own battle with ovarian cancer.
She has also written her autobiography called HAMMER! Making Movies Out of Love and Sex and teaches filmmaking at The European Graduate School in Saas-Fee, Switzerland.
You can learn more about this filmmaker at her official website.