Photography can seem to capture reality and the eye like no other medium, commanding belief and wielding the power of proof. In some cases, a photograph itself is attributed the force of the real. How can a piece of chemically discolored paper have such potency? How does the meaning of a photograph become fixed? In The Disciplinary Frame, John Tagg claims that, to answer these questions, we must look at the ways in which all that frames photography-the discourse that surrounds it and the institutions that circulate it- determines what counts as truth. The meaning and power of photographs, Tagg.