Stuff you (think you) know. See DIKW. http://en.wikipedia.org/wiki/Knowledge

see Epistemology, model, Tacit Knowledge

The Knowledge: How to Rebuild Our World From Scratch - Lewis Dartnell

Partial Excerpts (antilibrary)

INTRODUCTION

THE WORLD AS WE KNOW IT HAS ENDED. A particularly virulent strain of avian flu finally breached the species barrier and hopped successfully to human hosts, or was deliberately released in an act of bioterrorism

killed a large proportion of the global population

Or tensions between India and Pakistan reached the breaking point and a border dispute escalated beyond all rational limits, culminating in the use of nuclear weapons

The enormous volumes of dust and ash injected into the atmosphere reduced the amount of sunlight reaching the ground, causing a decades-long nuclear winter, the collapse of agriculture, and global famine.

I’m an optimist, though: I think morality and rationality would ultimately prevail, and settlement and rebuilding begin. The world as we know it has ended. The crucial question is: now what?

What crucial knowledge would they need to recover as rapidly as possible? This is a survivors’ guidebook. (SurvivalIsm)

People living in developed nations have become disconnected from the everyday processes of civilization that support them