Geoff Blackwell is an award-winning publisher, author, photographer and filmmaker. He has created numerous internationally bestselling books founded on humanity, equality and the environment, which have been published in forty languages.

He has worked alongside many internationally renowned photographers, authors and organisations, most notably Nelson Mandela and the Nelson Mandela Foundation, with whom he created five books. He has also conceived a number of multimedia projects that have given rise to books, films and touring exhibitions, including 200 Women: Who Will Change the Way You See the World, Wisdom and M.I.L.K. (Moments of Intimacy, Laughter & Kinship).

His most recent project, I know this to be true, was conceived in collaboration with the Nelson Mandela Foundation and is based on his original interviews with and photography of some of the most inspiring leaders of our time to record and share what really matters to them. He is co-founder of Blackwell & Ruth, and the founder of M.I.L.K. Tailor Made Books.

Ruth Hobday is co-founder and editor-in-chief of Blackwell & Ruth. She has worked on a number of award-winning books, five of them by the late Nelson Mandela including The New York Times bestseller Conversations with Myself, as well as Dare Not Linger: The Presidential Years and The Prison Letters of Nelson Mandela.

She is the co-author of 200 Women: Who Will Change the Way You See the World and an editor and producer for I know this to be true, a multimedia leadership initiative created in conjunction with the Nelson Mandela Foundation.