I've been reading this book called Brain Rules for Baby. It's pretty cool, it covers development up to a few years old. It was a NY times bestseller. I read the guys first book, just called Brain Rules.
He's a wicked smart neuroscientist who studies kids, but his books are very accessible, and very funny.
Teaches you all sorts of stuff you didn't know about child development. Explains alot about why kids do the things they do.
It's been very helpful to us so far.
Amazon sells it cheap as a ebook.
I did a review on my site of the first book -
Brain Rules- awesome book, i've given it to a bunch of family and friends. Really helps you remember stuff, and be more productive at work and at home.