The Lionel Gelber Prize is a literary award for "the world's best non-fiction book in English that seeks to deepen public debate on significant global issues". It is presented annually by The Lionel Gelber Foundation and the Munk Centre for International Studies at the University of Toronto. It is worth CAD $15,000.
Founded in 1989 by Canadian diplomat Lionel Gelber, the prize honours "the excellence of those who think and write about the local and global forces of change in international issues". Recipients are judged by a jury panel of experts from Canada, Britain, and the United States. The award has been described by The Economist as "the world's most important award for non-fiction".
(from Lionel Gelber Prize Wiki Site, wikipedia.org)