Need resources for selling wine

[wondersofwine]

I second Andrea Immer's book. Another basic guide is "Wine for Dummies." I still refer to it on occasion although I've been drinking wine for about 30+ years. Also, ask your customers if they have definite preferences in wine--softer, more full-bodied, white wines without wood influence, etc. (Maybe the most experienced sommelier at the restaurant or the beverage manager can describe the wines for you or categorize them as these are more full-bodied and tannic, these are more fruity tasting, etc.)
And keep tasting yourself as you propose to do. It's a fun task to accomplish.