The Mighty Toddler
I found Robyn's advice to be non prescriptive and calming. She gives you ideas on why and what is going on but doesn't tell you what to do and isn't strict.
It covers just about everything, the only thing I didn't like was the receipes and meal plans for toddlers and babies. I found them a bit too full on and although they cook from scratch, it just made me feel like a bit of a failure.