Harold A. Innis helped to found the field of Canadian economic history. He is best known for the "staples thesis" which dominated the discourse of Canadian economic history for decades. This volume collects Innis' published and unpublished essays on economic history, from 1929 to 1952, thereby charting the development of the arguments and ideas found in his books The Fur Trade in Canada and The Cod Fisheries. These essays capture Innis' ever evolving views on the practices and uses of economic history as well as Canadian economic history. The new introduction written by prominent historian Matthew Evenden provides a fresh take on Innis life's work and situates the essays in the context of his scholarship as well as recent studies on Canadian economic history. This volume offers invaluable insight into one of Canada's most original thinkers and his interpretation of our nation's history.