There are numerous books out and about on the tpicos of fishing, but few among them concentrate on both fresh and saltwater fishing. You may be better off with two magazines (or even three) if you want to specialize on species like Walleye, Steelhead Salmon, etc. For freshwater, I have never known a magazine better than Ron Al Lindner's In/Fisherman (under new ownership). Steelhead Salmon is another classic. Alaska Fishing is GREAT! Western Outdoors covers both, but adds hunting as well. The list goes on and on. Check your local book store for examples.
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