For blokes - Men At Birth by David Vernon. The Birth Partner by Penny Simkin.

Sadly many dads books are pretty much not 'helpful' in the sense I would have liked, but men like to be humoured which most of the books contain!

Parenting could really be applied to either gender and also Raising Boys by Steve Biddulph has a section for dads, so both partners can apply the ideas. In fact there are lots of good Steve Biddulph books which are worth the read