After SHTF, you will be facing all kinds of problems , needing all kind of info to take care of. You may need a few bits of info in first aid, measurement conversion, construction math, electical DIY, or laws of physics.

Where would you get those QUICKLY ???

One good source is the Pocket Reference Book

http://www.amazon.com/Pocket-Ref-Thomas-J-Glover/dp/1885071000

( I don't have it, but seen a number of preppers mention it online. )

Another source of QUICK reference are the Academic quickstudy barcharts
They are 8.5x11 laminated guides in all sorts of fields of knowledge. From first aid to nursing, anatomy, to accounting.

http://www.barcharts.com/Inventory/Navision/9781572225800

http://www.barcharts.com/Inventory/Navision/9781572229273

http://www.barcharts.com/Inventory/Navision/9781423201922

http://www.barcharts.com/Inventory/Navision/9781423208884

http://www.barcharts.com/Inventory/Navision/9781423205432

http://www.barcharts.com/Inventory/Navision/9781423208877

http://www.barcharts.com/Inventory/Navision/9781572229457

http://www.barcharts.com/Inventory/Navision/9781572227286


The laminated guides have three holes for 3-ring binders.


STANDARD DISCLAIMER:
I have absolutely no affiliation to these sources of info. I only seen these laminated guides yesterday in a local bookstore, and thought to share with other preppers