Best Cookbooks Ever

The Observer released it's list of the 50 best cookbooks of all time. Of course we see Julia Child, Marcella Hazan, Elizabeth David, Alice Waters, and Fergus Henderson. Nigella Lawson and Jamie Oliver even make the list. I don't think Thomas Keller made the list, which I thought was strange. There were quite a few that I have never heard of. But it got me thinking: what was the criteria for the list? What would make my list? To me, a great cookbook is one that has a pleasing design, includes beautiful pictures and recipes that I can (somewhat) easily replicate myself. And, they are cookbooks that I would turn to regularly. Although many of these cookbooks are considered classics, I don't regularly cook from any of them. I've cooked from Mastering the Art of French Cooking, but it's not something I would do regularly. Momofuku is gorgeous, sure. But who (aside from the serious cook) actually cooks from it? Same with The Complete Robuchon and Henderson's The Whole Beast. While these are great cookbooks to read, what are the best cookbooks of all time for the average home cook? What are the cookbooks that you regularly turn to?

I am having a hard time coming up with titles. I have repeatedly used Mark Bittman's How to Cook Everything and The Joy of Cooking for reference, but I don't know if I would put them on the "best cookbooks ever" list. Let's hear from you: what would you put on your list?