On the final weekend of her Hammer Project exhibition, Simone Leigh is joined by Rizvana Bradley, assistant professor of film and media studies and African-American studies at Yale, for a performative lecture. Leigh and Bradley will engage in an improvisational exchange about black radical political, literary and artistic traditions.

Inspired in part the Black Panther Party’s community outreach focused on self-determination, Leigh’s recent work in social practice refers to historical instances where people, especially women of color, operated in secret to exchange knowledge, politically organize and empower each other in the face of class and racial inequity.

See them Saturday and Sunday, Jan. 7-8, from 3-5 p.m. at the Hammer Museum.