David Alan Harvey’s photograph of a boy with balloons on a street in Santiago, Chile, was taken in 1997. It is included in Streetwise, a new collection of pictures from the archives of the Magnum agency. The Magnum name became synonymous with street photography in the 1950s and 1960s under the guiding influence of co-founder Henri Cartier-Bresson. The current volume pays homage to Cartier-Bresson’s black-and-white “decisive moments” and examines the way that that spirit has been taken forward, particularly after advances in digital photography and printing enabled a revolution in colour in the 1980s.

Harvey was elected into the agency – there is a voting process among the membership – in the year that this picture was taken. By then, as a staff photographer for National Geographic, he had been taking pictures for more than three decades. A principle subject was the Hispanic diaspora on both sides of the Atlantic – the “divided soul”, as he terms it, of Latin culture.