Ken Alder has a PhD from Harvard in History of Science as well as a Physics degree. In 1998 he won the Dexter Prize for the best book on the history of technology.
Charles Allen is the author of a number of bestselling books about Indian and the colonial experience elsewhere. A traveller, historian and master storyteller he is one of the great chroniclers of India.
David Andress is a leading scholar of the French Revolution and an elected Fellow of the Royal Historical Society.
Rick Atkinson is a former staff writer and assistant managing editor at The Washington Post, and the bestselling author of The Long Gray Line and Crusade. His many awards include the Pulitzer Prize.