I recommend Pinky McKay books also. "sleeping like a baby" and "100 ways to calm the crying" gives good tips too.

I met Pinky McKay a few weeks ago at her Brisbane talk and she recommended that book you are talking about. Definitely look into it

The first 6-8 wks is really spent getting to know your baby and your baby getting to know you and you'll soon learn what the different cries etc mean..... it will get easier. In the meantime just focus on sleeps and feeds. You are doing a great job