Captain's Seamanship
One of the first things I would read for general seamanship reference is Tristan Jones "One Hand for Yourself, One for The Ship". I'd keep one on the boat for emergency reference. Talk about a guy who can make do with very little!
You can find it at amazon...click the pic below: 
Some Helpful links:
http://www.fortressanchors.com/safe_anchoring.html
A good guide for Anchoring scope and more at fortress Anchors