Roy DeCarava was one of the most influential documentary photographers of the 1950s-1960s. He was known more for the simplicity and ordinariness of his work than for it being spectacular or showy. His particular importance was photographing the Black community of his native Harlem and for the jazz scene of the era.
For a more thorough descrtiption of DeCarava’s work check out the always insightful Claire O’Neil’s essay at: https://www.npr.org/sections/pictureshow/2009/10/decarava.html