Paul David Savage describes himself as "a speechwriter, author and heavy diesel machinery operator from Whanganui, New Zealand".

The heavy machine operator credentials are relatively new.

When Savage packed in his public relations job and headed off to the American Midwest to join a harvesting crew in 2016, he had completed fewer than 20 machine hours on tractors and had no idea just what he was in for.

His new book, To South Dakota and Back: The Story of The Great North American Harvest, chronicles his journey into the unknown and he believes it offers "something for everyone".

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