books for parents
My top resources were The Mayo Clinic Guide to Your Baby's First Year (read it cover to cover) and the American Association of Pediatrics Caring for Your Baby age 0-5 (still reference this all the time). There are lots of sleep books out there and you will decide what makes sense for you (we did Ferber, but it's not for everyone!). Another very popular sleep book is 12 Hours' Sleep by 12 Weeks Old.