This true story of the horrors endured by the people of Hiroshima after the dropping of the atomic bomb - pieced together from six survivors' real accounts - is the most impactful piece of non-fiction I've ever read. It's no surprise that when the New Yorker devoted a whole issue to it 51 years ago, the realisation of the scale of devastation that the bomb had unleashed shook America - and the world - to its core.