Greta Thunberg is one of the most extraordinary young people of our time, known and respected by kids all over the world - this is her story! It's a story of hope, courage and determination and it carries the empowering message that you are never too young to make a difference. Children all over the world are joining Greta's cause. They are engaged in world politics like never before and Greta represents how one person can help to change the world. 8+