I bought my partner "pregnancy for men" and I actually prefer it to the book I have (how to grow a baby and push it out) although both have good info. I also have what to expect when your expecting but it's heavy and I can't face reading it, I will pick it up and flick through a couple of pages but that's it.
I was given a bump to first birthday journal for Christmas and I really like it. Each week has a section for what we've been up to and what the baby is doing. And then follows on up until first birthday.