Kevin Fedarko is an author and journalist who has spent the past twenty years writing about conservation, exploration, and the Grand Canyon. He studied at Columbia University and Oxford, and has worked as a staff writer at Time (primarily on the foreign affairs desk) and a senior editor at Outside. He has also written for Esquire, National Geographic, and The New York Times, and is the author of The Emerald Mile and A Walk in the Park.

Maurice Walsh was an Irish novelist, now best known for his short story "The Quiet Man", later made into the Oscar-winning film The Quiet Man, directed by John Ford and starring John Wayne and Maureen O'Hara.

Sonia Purnell is a British writer and journalist who has worked at The Economist, The Daily Telegraph, and The Sunday Times.

Walter Seff Isaacson is an American journalist who has written biographies of Henry Kissinger, Benjamin Franklin, Leonardo da Vinci, Albert Einstein, Steve Jobs, Jennifer Doudna, and Elon Musk.

Yeonmi Park is an American conservative activist and author.

Andy Weir is an American novelist.