The FAA Airplane Flying Handbook is a great manual. But in the section on Stall Awareness it does not discuss the why of stall awareness training. I had my own ideas on why it is important, but I wanted to make sure I have a deep understanding so I Googled it. I found this excellent article on the subject:
FCI Emergency Maneuver Training: Review of New AOPA Stall/Spin Study by Rich Stowell