This week, Harvard University’s Radcliffe Institute for Advanced Study is hosting Vision & Justice, a two-day conference on the role of the arts in relation to citizenship, race and justice. Organized by Sarah Lewis, a Harvard professor, participants include Ava DuVernay, Henry Louis Gates Jr., Wynton Marsalis and Carrie Mae Weems. Aperture Magazine has issued a free publication this year, titled “Vision & Justice: A Civic Curriculum” and edited by Ms. Lewis, from which we republish her essay on photography and racial bias.

Back in 2001, brothers Ray and David Potes were putting out photo zines the old fashioned way. Ray would edit and art direct while Dave ran copies while working in a college copy department. The one titled Hamburger Eyes really stood out — and began attracting photographers who wanted to share their work.

Lewis Hine said a wonderful thing a long time ago: “We should be photographing two things. The things that should be put right and the things that should be appreciated.” David Hurn used to have this quote on his wall when he was teaching. When I learned of this, it made me appreciate that a Magnum photographer such as David Hurn didn’t have to be a war photographer to create an important image. There are subjects more on the domestic side that interest me more. Hope, humor, empathy are qualities I value in a photograph.

Among the indigenous people from Yalálag in Mexico’s Oaxaca state, these ties bind them to one another, no matter where they may have migrated in search of opportunity. Citlali Fabián’s parents hailed from there, moved to Mexico City, and returned to Oaxaca City, which is 90 grueling kilometers away from Yalálag. But no matter where Ms. Fabián lived, her heritage kept her — and others — close to the cradle of her people, who descended from the Zapotecs.