Ultimately, protein and carbohydrates/ starches. Everything those books tell you, you can learn right here...for FREE. I bought into the Y2K crap years ago. I bought books from "experts" , read every article, subscribed to Y2k magazines, ect., ect., Ad Infinitum. After all was said and done ,I sat there looking at all the wasted money I spent for naught, and realized these people didn't believe a flippin' word of what they wrote. It was all about making $$$ off gullible people. Fear sells books just as much as sex, tragedy, and bad news sells newspapers. Nothing will come of this 2012 B.S. . Make "prepping" a lifestyle, and you will not have to worry about some MANUFACTURED impending doomsday. Coincidentally, you will be better off if something REAL actually happens, like a tornado, hurricane, blizzard, job loss, financial crisis. As for food, stock what you use, and use what you stock. When you shop , buy 3 of every can, to get started. One to use, one for your pantry, and one for your reserves. As you use one, buy two to replace it. Rotate stock. Rice is a good , stable , easily stored food that is very cost effective right now. Dried beans are as well, and have protein. Canned meats , such as tuna, chicken, and Spam are good to get you started. Set aside staples, salt, pepper corns ( and a grinder), sugar, instant coffee/ tea, sugar. Then get some comfort foods. Don't buy into the hype...literally. BTW, Recently for fun I did a google search for some of the authors of these old Y2K books...nothing. Y2K was a great business move for them. TP