IMHO the best book on Great Lakes steelheading to date. I have all the others which are few, this provides a great overview of this immense fishery in the U.S. great lakes states and canada and compares it to the PNW steelhead fisheries. I do not think any one could exhaust the 7 X 24 steelhead fly fishing opportunities there are in the great lakes in ones life time.
Matt Supinski also writes for Fly Fish America and wrote the Pere Marquette River Journal for F. Amato Publications. He is a resort and fly fishing guide located in Michigan.
It comes in hard and soft covers.