Though still relatively unknown outside Japan, Tomatsu, now 80, is arguably the greatest and most influential of all the photographers that emerged during his country's turbulent postwar era. Over a span of 50 years, his work has reflected, often obliquely, the changes in Japanese culture as the American military presence and then the unstoppable spread of American popular culture, helped shaped a new outward-looking, consumer-driven nation. Two series of photographs – Protest, Tokyo, 1969 and Eros, Tokyo, 1969 – record the often turbulent youth cultural changes of the time. His book, Oh! Shinjuku, named after a shopping district in central Tokyo, chronicles the rise of a young and rebellious Bohemianism that, as an older outsider, he saw – as he later put it – "through the eyes of a stray dog".