In the 1960s and 70s, at least two million people died during China's cultural revolution. More than 50 years on, the scars still run through the heart of Chinese society.
Tania Branigan spent seven years as The Guardians China correspondent, stationed in Beijing.
Her first book, 'Red Memory: Living, Remembering and Forgetting China's Cultural Revolution' explores the stories of those who are driven to confront the era that most have been encouraged to forget.
Currently, Tania is the Guardians foreign leader writer. She speaks to Jim from London.