Would this gift be offensive?

My cousin just had her first baby 3 months early so I'm stuck with buying a last minute shower gift. I wanted to do something creative and am thinking about buying her books for her baby(lullaby books, potty training, pop up, etc) and was going to buy parenting books for her. Do you think Parenting books would scream " I don't think you are going to be a good mom study up!" I think she will be a great mom, don't get me wrong, but she is young and I thought it would be useful to have. I sure would want something to refer to besides calling my mother every time I was unsure. Also should I address the gift to her or her and her boyfriend? Thanks