Graham Nash, whose photographs are being displayed at the Morrison Hotel Gallery this month, was in love with photography even before he got into music. "I took a portrait of my mother when I was 11," he says. "That was the moment when I knew that I saw differently. This wasn't just a snapshot of my mother – I captured a person far away in thought. I've wanted to capture people ever since." Nash has been touring the world every since the Hollies broke big 50 years ago, and he usually brought his camera with him. Here are 10 amazing photographs from the past five decades, and the stories behind them.