Seriously, if I were unconvinced about something, a book is not going to change my mind for me. I can find a book extolling the values of whatever it is out there. If I wanted a book promoting paleo, veganism, raw diet, polyamory, you name it, it exists. Unless your wife is open to the idea, good luck. Unless she is severely overweight and in poor health and developing gestational diabetes, leave her alone. You know what's best for your child when it's born? Parents that get along.
F 28/5'4/100 lbs
"I'm not a psychopath, I'm a high-functioning sociopath; do your research."