Sara Wheeler’s books include the international bestseller Terra Incognita: Travels in Antarctica, of which the Telegraph reviewer wrote, ‘I do not think there will ever be a better book on the Antarctic.’ The Magnetic North: Notes from the Arctic Circle, was chosen as Book of the Year by Will Self, Michael Palin, A. N. Wilson and others. She has published two biographies of travellers: Cherry: A Life of Apsley Cherry-Garrard, and Too Close to the Sun: The Life and Times of Denys Finch Hatton, and was immensely relieved to write about women at last in O My America!. She lives in London.