I'm currently reading Marriage to a Difficult Man: The Uncommon Union of Jonathan & Sarah Edwards, by Elisabeth Dodds. It's definitely worth working into your year's reading list, though you won't find it in the 'self-help section', as the kind Barnes & Noble tried to direct me. Have a look on Amazon or Vision Forum instead.
One amusing point I have to share:
"One church record of June 1725, repoted: 'Some evil-minded persons placed a sturgeon of about 8 ft in length on the pulpit floor where it lay undiscovered until the Lord's Day following...which occasioned them to perform their exercise in the orchard.'"
Neat trick. I'm rather impressed at the fishing capabilities of our Puritan ancestors - most of my family wouldn't even consider wasting an 8ft sturgeon!