Yes, that is the book referred to. If you can pick it up for $12.00 or so, that is a smoking deal because when it first came out, the price was around $30.00.
Overall, Wills did a pretty good job and I found the book to be quite informative and interesting. However, I also noticed several errors in his discussions about Colt, Case and Ingersoll. But that is highly understandable, considering the lack of truthful information available along with the perpetuated urban myth that I still see appear in forums. It became blatantly obvious to me that Wills is a Cub Cadet lover at heart, as much of the discussion about that brand is greater in quantity then what he had to write about other marques.
But once again, this is to be expected because the whole phenomenon of collecting and showing lawn and garden tractors is relatively new and far too much factual information was lost over time or just never recorded. Will's book makes for a good read if you are really into the world of garden tractors. So far, very little has been written about them and I applaud Will's efforts to shed some light on this topic.