Photography is one of the principal filters through which we engage the world. The contributors to this volume focus on Walter Benjamin's concept of the optical unconscious to investigate how photography has shaped history, modernity, perception, lived experience, politics, race, and human agency. In essays that range from examinations of Benjamin's and Sigmund Freud's writings to the work of Kara Walker and Roland Barthes's famous Winter Garden photograph, the contributors explore what photography can teach us about the nature of the unconscious. They attend to side perceptions, develop latent images, discover things hidden in plain sight, focus on the disavowed, and perceive the slow. Of particular note are the ways race and colonialism have informed photography from its beginning. The volume also contains photographic portfolios by Zoe Leonard, Kelly Wood, and Kristan Horton, whose work speaks to the optical unconscious while demonstrating how photographs communicate on their own terms. The essays and portfolios create a collective and sustained assessment of Benjamin's influential concept, opening up new avenues for thinking about photography and the human psyche.