Greg McDonnell 's writing and photography have been praised by rail enthusiasts across North America. Each new book by Greg McDonnell is a major event in the large railfan community, and Boston Mills Press is proud to be his publisher. Greg is a featured columnist for Trains magazine. His acclaimed large-format pictorials include Signatures in Steel , Heartland , U-Boats: General Electric's Diesel Locomotives , Passing Trains and Wheat Kings . He is currently at work on a new book and overseeing a Masters of Railway Photography book series for Boston Mills Press. He lives with his wife and three sons on the edge of a ravine overlooking the Canadian Pacific Railway's Orr's Lake Hill.