Across a 12-foot wall and the width of a white painted line at Checkpoint Charlie, East and West confronted each other for nearly 30 years. Yet it is the individual stories that are perhaps most telling. Astonishingly, these memories are largely untapped, so until now the complete story of the Berlin Wall - the people's story - has remained untold. Christopher Hilton, a journalist and writer, has been captivated by Berlin's unique past for three decades, visiting it many times and conducting hundreds of interviews there since the Wall came down. Leading world politicians, the American military, the British military, East German border guards and ordinary people on noth side all feature here, their memories interwoven into the narrative.