I'd get a copy of the Science of Parenting by Margot Sunderland. Its based on hundreds of studies and gives you great advice and tools with babies development and explains how you parent affects their brain and why. Easy to understand and read, and will give you an answer to all that lecturing you get about babies being in cots and routines... goes up to childhood too so tools from birth to childhood. Very very good, an essential in my books. I have them in stock if you are interested in getting a copy.