Hubby picked one up at a good will for us. (perhaps a little dated but can't argue price) honestly, haven't found anything inside that has been too dated.
What to Expect: The first Year by Murkoff, Eisenberg and Hathaway.
There's a month by month for baby with milestones and what to expect as well as possible problems. And then towards the back theres more "troubleshooting" like when babies are sick, first aid, low birth weight, advice for the different seasons...
I really enjoy the book and it often explains what to expect at doctor visits and suggests questions to ask even. And the milestones lists are great, it separates them by what baby should be able to do, probably can do, might be able to do...