Another photographer nominated for a book – ‘Faces and Phases’ – Zanele Muholi also focuses on the injustices of post-apartheid South Africa. But unlike the crazy detail of Subotzky and Waterhouse’s project, hers is a relatively straightforward undertaking. For the past eight years, she has photographed black gay women, as well as others who identify as LGBTI, in Capetown, Johannesburg and across the country. The resulting black-and-white portraits are perhaps the most conventional images on show here. Yet, accompanied by testimonies about violence and ‘curative rape’, the value of Muholi’s project overwhelms: when she says on the introductory film that these are ‘not just portraits, they are participants’ and that ‘it is OK, it is not a crime, nobody deserves to be rebuked or suffer hate speech’, you’re struck that this is the one display that really seems to matter. If the prize goes for importance – for photography standing for something way bigger than itself – Muholi is a dead cert.