FUCK EVERYONE'S RECOMMENDATIONS
Don't listen to them (ok Joy of Cooking is good).
What you really need is Best of America's Test Kitchen. They put one out every year, not only does it have technique descriptions, equipment and supply recommendations, it just has awesome recipes. The "Cooking for Two" series is also awesome for couples.
Then Julia Child's Mastering the Art of French Cooking.
And my personal favorite just because I have met the chef and he had my absolute favorite restaurant I have ever been to... Homegrown. I love that guy and love that cookbook.
The best cookbooks are one's that include technique descriptions. Any random online site can give you a list of ingredients but it is harder to get good recommendations about technique.
Julia Child does an amazing job of including technique descriptions. I specifically and highly specifically recommend her Pan De Mie recipe if you ever want to bake bread. Just get that cookbook and call it a day.
Seriously, I made some bread this weekend and every time I do I just feel inadequate. That bread is really damn good.
Though, speaking of cooking and Rhody stuff. My sister got me a signed copy of Matt Jennings' cookbook. He was the former owner of La Laiterie in Providence which is my favorite restaurant ever (RIP). He owns Townsman now in Boston. Link.
They are pretty complicated recipes but so goddamn good and New England centric. I think I am working my way through this bad boy. We did the hanger steak recipe with charred fennel and orange... fuck yes on all levels.