There are ENDLESS books out there dealing with new baby stuff. Some are good and some are not - I found some stressed me out more than before I started reading!
Here are just a few that I think encompass everything you'll need for those 'new-mom' moments!
What to Expect the First Year by Heidi Murkoff, Arlene Eisenberg & Sandee Hathaway, B.S.N. - This is great whether you are a curious well-read mom or not. Because every baby gets diaper rash and this book has an entire section on all the different kinds. Or, if you want to have some guidance as to how to start solids, this is great. I read it month by month and really enjoyed the ideas given about how to talk to your baby, what games to play, etc. It also really helps when you want to look up a specific condition that doesn't warrant a call to your pediatrician.
Healthy Sleep Habits, Happy Child by Marc Weissbluth, M.D. - I really liked his tone and of course, his philosophies. It made the most sense to me and it wasn't as condescending or as "black and white" as others.
The Happiest Baby on the Block by Harvey Karp, M.D. - This book teaches you how to soothe your baby with the five S's. A GREAT way to calm a crying baby. I actually think just reading an article about this method works fine too. The point is, the method can be summed up in a few pages!
The Complete and Authoritative Guide, Caring for Your Baby and Young Child, Birth to Age 5 - This is put out by the American Academy of Pediatrics and is a more factual approach to sleeping, eating, etc. It is a good resource to keep in your house and pull out if you want some specifics about feeding solids or perhaps symptoms of an ear ache.
Good luck and enjoy these reads!