This is first time in modern history that a Monarch has reached her Diamond Jubilee. To mark the occasion, The Diamond Queen presents a definitive analysis of The Queen"s reign, examining her history, constitutional role and responsibilities, as well as her impact around the world. It features interviews with prime ministers, world leaders and members of the Royal Family, and closely follows The Queen"s working engagements around the world for the period of more than a year and a half.