Martin Goodman is an award-winning author who divides his time between California and the United Kingdom. He is the author of twelve books of award-winning nonfiction and fiction, including his account of eco-lawyers saving the planet, Client Earth, which won Judges' Choice in the UK's Business Book of the Year and Green Book of the Year from Santa Monica Libraries. His biography of the scientist J.S. Haldane Suffer & Survive won Best Book, Basis of Medicine in the British Medical Association's Books of the Year, and his debut novel On Bended Knees was shortlisted for the Whitbread Prize. Goodman is emeritus professor of Creative Writing at the University of Hull, where he is director of the Philip Larkin Centre for Poetry and Creative Writing.

Ram Niwas Bishnoi Budhnagar is a leading Bishnoi activist, the former leader of the Bishnoi Tiger Force, and president of the Youth Congress of Jodhpur.

Peter Wohlleben is a world-renowned forester and author of many bestselling books about the natural world, including The Hidden Life of Trees, The Inner Life of Animals, The Secret Network of Nature, and The Power of Trees. His books have been translated into dozens of languages and have been adapted for the screen. When he is not writing and researching, Wohlleben manages a sustainable forest academy in Germany's Eifel Mountains.