Daniel Schwartz is a Swiss photographer. He is the author of While the Fires Burn: A Glacier Odyssey (2017), Travelling Through the Eye of History (2009), Delta: The Perils, Profits and Politics of Water in South and Southeast Asia (2004) and The Great Wall of China (2001), all published by Thames & Hudson. Beat Wismer (b. 1953) is an art historian. He has curated numerous exhibitions of historical and contemporary art, on which he has also written and published widely.