I know people around here follow very different diets and have very different tastes but I thought I'd share a cookbook that just came out that I found to be very good.
It is the Ancestral Table by Russ Crandal who is author of the excellent Domestic Man food blog.
Has very good instructions on basic techniques, cooking tools needed, and of course many recipes. I would say that it is my favorite cookbook, only second to The Joy of Cooking which I consider the nearly definative guide.
Feel free to reply with your own recommendations.