A woman with bobbed blonde hair is turned away from the camera, one hand on the edge of an open door. She's wearing a red top with an a4 sheet of paper on her back that says 'LA PRESIDENTE PUTTANA'

CODE:RED, Red umbrella march, public action, 49th Venice Biennale of Contemporary Art, Venice, 2001. Image via Museum and Galleries of Ljubljana

The red umbrella as a symbol of sex workers rights came from Tadej Pogačar’s "CODE:RED" at the 49th Venice Biennale in 2001. Read the press release here.