`We know through painful experience that freedom is never voluntarily given by the oppressor; it must be demanded by the oppressed' Martin Luther King In an era where the liberties we often take for granted are under threat Letters To Change the World is a collection of inspiring letters offering reminders from history that standing up for and voicing our personal and political beliefs is not merely a crucial right but a duty if we want to change the world. Edited by Travis Elborough the collection includes George Orwell's warning on totalitarianism Martin Luther King's 'Letter from a Birmingham Jail' Albert Camus on the reasons to fight a war Bertrand Russell on peace Emmeline Pankhurst rallying her suffragettes Nelson Mandela's letter to his children from prison and Time's Up on the abuse of power.