Survivalist Encyclopedia?

I have an idea for a doomsday-style encyclopedia filled with information on how to do the basics from many different skill sets (chemistry, blacksmithing, woodworking, cooking, tailoring, etc). I've started collecting information and articles for it, but I'm curious if anything already exists or if there are any articles that are must-haves for that information. The idea is to have a hard-copy reference of trade knowledge that would not only come in handy in the typical movie apocalypse scenario, but may come in handy for the Katrina-level disasters and general learning entertainment. Thanks in advance.