Best Dog Books to Read:

These are a few of my favorite dog books regarding general dog behavior and training:  

1. The Other End of the Leash by Patricia McConnell
2. Don't Shoot the Dog by Karen Pryor
3.  How to Behave so Your Dog Does by Sophia Yin
4. The Power of Positive Dog Training by Pat Miller 
5. How to Teach a New Dog Old Tricks by Ian Dunbar

For dogs with specific issues: 
1. The Cautious Canine by Patricia McConnell (Fearful Dogs)
2. Mine! by Jean Donaldson (Resource Guarding)
3. Feisty Fido by Patricia McConnell and Karen London (Reactive Dogs)
4.  I'll Be Home Soon by Patricia McConnell (Separation Anxiety)

Currently I'm reading Dog Sense by John Bradshaw.  It may make the list soon as well.