What's your definition of deaf culture?
What most people would say is... "Do not look for actual sources on understanding something when you're better off learning yourself from hands-on experience."
That's like you reading a book on how to improve yourself on Sudoku.
Here's an example...
5 Books That Can Actually Make You Stupider | Cracked.com
But would books be a good option, along with association with Deaf/HH folks, for beginning ASL students?