Metasploit Book

I'm trying to understand metasploit and using meterpreter to simply hack into an xp system that hasn't the slightest security with no luck. I've searched the exploit database with no luck. I know this is simply my lack of knowledge of the tool and what it is really doing. I was wondering if anyone could recommend a Metasploit book that goes into detail what it is doing so I can better understand why my exploit is not connecting and failing.

On amazon, there is a Metasploit: The pen tester's guide that has decent reviews, along with The hacker playbook 2, which may not cover what I am needing. Any guidance is appreciated...