This was a great go-to resource during the pregnancy! I preferred the scientific information, visual support (in-utero imagery and a lot of captioned photographs to represent the text), and unbiased approach presented in the text, as opposed to some of the fluffier, or more biased, texts out there. Substantial, research-based info also was appreciated by my statistically-minded partner!
Would have been even better if natural and home birth options had been further explored, but the best general pregnancy book I was able to find (and, believe me, I was thorough!).