>> Tess Thackara, The New York Times Published: 04 May 2021 12:48 PM BdST Updated: 04 May 2021 12:48 PM BdST Deborah Willis's photographs in "Black Women and Work," installed in one of the parks run by the Village of Arts and Humanities, in Philadelphia, April 28, 2021. In a section of North Philadelphia, near an underpass and up a soaring stoop painted sky blue, Ms. Nandi’s home is decorated with pictures of civil rights heroes and political icons — Malcolm X, Queen Nefertiti, Lenin. Here, for some 20 years, Denise Muhammad, known by everyone as Ms Nandi, and her husband, Khalid, ran an afternoon penny candy store for the neighbourhood’s children out of their front living room, but it did much more than sell Tootsie Rolls.