Yep, you're in your trapping infancy. There are volumes of books and videos on the subject. Like hunting, it's a lifelong learning experience. I'm sure I can't do it justice on a thread like this, but it'll be a start. From the species you listed, you may be doing mainly water trapping with foot-hold type traps. There is also the option of using snares and conibear type traps if you can be sure no dogs or other pets and livestock can get caught. Box traps are also an option, but they are heavy and expensive.
The #1 or #1.5 coil spring foot hold trap is probably what you will want to assault coon and mink. The 1.5 can also be used for fox. A typical water set is the pocket set. It is essentially a hole dug into the bank of the creek or river you're trapping at waterlevel with the trap in the entrance and bait in the back of the hole above water. A lure can also be used and would be recommended. There are numerous commercial lures available. For supplies and books/videos, look at
www.fntpost.com . You will want to use a drowning wire set up. Hard to describe, but it is essentially a wire that is staked in deep water near the set and a second stake at the trap site. A drowning lock is used to attach to the wire so that when an animal is caught, it dives for deep water and the lock prevents it from resurfacing. This prevents trapped animals from fighting the trap and escaping.
Furs are a whole other topic and also a lifelong endeavor to become good at processing. For coon, mink, possum, skunk, and a number of other furbearers, the animal is skinned "cased" which is to split the hide from ankle to ankle via the anus and removing the skin like a sock. The eyelids, nose, lips, ears, etc remain intact with the pelt. The front legs are cut off about the elbow. They are "fleshed" (all fat and meat removed) using a fleshing knife and fleshing beam before being stretched inside out over a wooden or wire stretcher to dry. Pelts are not tanned, only dried before selling. In recent years, most fur harvesters skin their catch and roll them up, put them in plastic bags, and freeze them. They then sell them "green" to the fur buyer. You find fur buers by calling you wildlife department and asking for a list. Contacting your state furharvester club is also a way to find reputable fur buyers. Furharvesting can be as big a passion as bird hunting. You can invest a lot of time and money in it, or you can do it fairly lean. What ever you choose, you can have a lot of enjoyable memories and fun doing so. Before I have to look for a publisher, I'll end this book
