I've had the 'Pregnancy Bible' by Anne Deans and also 'Pregnancy and Birth' by Miriam Stoppard (?).
I took the Miriam Stoppard one (bright cerise colour) back as I'd read it in a week and didn't learn much from it - in my opinion it was worth spending the £5 extra on the bigger one (light pink) which was a lot more thorough and has a section for newborns too, a health section at the back for pregnancy and newborns, and a chapter for dads to read.
I have a NCT Baby Care book which my mom got me for after the birth, and also the Haynes Baby Manual I got for my OH. I don't know how good the first one is as I've not had my baby yet but it seems quite thorough. The Haynes Manual - well it's by no means a good one to get if you expect to learn something, but it's cool for Dad's as has the basics and it's a bit of a laugh I suppose.
To be fair though, this forum has been a godsend - I was glad to have the Pregnancy Bible to read through, but for any other questions this place has been by far the most useful tool.