OTTAWA — Like many book buyers, Randall Hansen, a professor of political science at the University of Toronto, has been unable to find a copy of “Fire and Fury: Inside the Trump White House,” Michael Wolff’s instant best seller.

His own book, though, a scholarly study about the Allies’ bombing of Germany during World War II, is readily available. It has even found a second life on three Amazon best-seller lists and is back-ordered on the site. Maybe that’s because its title is “Fire and Fury: The Allied Bombing of Germany, 1942-1945.”

“I don’t know how much of this is a mistake and how much of this is from new interest created by free advertising,” Professor Hansen said in an interview. “There might be some returns.”

The professor’s book, published 10 years ago, sold relatively well and received a nomination for one of Canada’s top book awards. It is highly critical of the British-led nighttime firebombing of German cities, finding it both morally dubious and of little strategic value. But precision daylight bombing by the United States late in the war, Professor Hansen said, did undermine Germany’s military.