Leslie Feinberg is best known for hir work as an author and service as a high ranking member of the Workers World Party. Feinberg described being transgender as a wide umbrella term including all people who ‘cross the cultural boundaries of gender’. Leslie hirself used many different pronouns and generally stated being personally unaffected by pronoun usage as long as it was not being done to offend or disrespect.

Leslie worked as an author and political activist focusing on the intersections of class, gender and sexuality. Stone Butch Blues, a novel, is partially autobiographical and a LAMBDA award-winning piece of LGBT history.

Feinberg was one of the first 50 LGBT trailblazers and pioneers of LGBT rights that were honored and memorialized on the National LGBTQ Wall of Honor at the Stonewall National Monument.

Leslie was also a long sufferer of chronic illness as a result of Lyme Disease and other tick-borne illnesses that went untreated and did work within the realm of disability art. Feinberg made many statements about why hir illnesses went untreated for so long and it was due to negative experiences and bad treatment/care within the medical industry as a transgender person. Leslie died at home, with loved ones of hir chosen family and stated hir final words as, “Remember me as a revolutionary communist.”