W.T.
I highly recommend The Portable Pediatrician. It costs about $15 from Amazon, and it is really strightforward, easily organized, down-to-earth; it has a lot about health/development, but what I like best is her explaining how best to parent each age group. The book gave me hope at a lot of times when I felt like I didn't know what I was doing as a parent. I give it as a baby shower gift whenever I can!