Here's a fuller thread from the sidebar, but I'll throw in an extra recommendation for The Expectant Father, which I've been finding really helpful. It kind of threads the line between super-authoritative information-overload (like the Mayo Clinic guide to pregnancy) and a lighter conversational kind of thing. Ideas like how to start planning for a college fund, what you'll actually want to take to the hospital, tips on being a supportive and effective partner while managing your own stresses, etc. It's my pre-dad informational security blanket.