I don't know how impressed a manager might be, and I wouldn't buy a bunch of books until you actually get the job but here are some books that I have that helped me a lot when I first started and still refer to quite often.
I wouldn't worry about overloading yourself with books upon books to read. Get yourself one book...specifically one you can reference if needed. A good critical care book (the book from nursing school did great for me, it was amazing looking back to now and how much I can put relavence on and how much of it makes so much more sense) and a pocket guide (I used "the ICU book" by marino). the rest will come with time.
As a side note-do not come off trying to impress the manager too much. You want to seem teachable and impressionable in your new environment.e
. You want to seem teachable and impressionable in your new environment.e
I think this is most important trait in a new grad regardless of where you are working, but particularly in ICU.
Personally, I signed up the AACN pretty soon after I started in the ICU. They have a ton of info for free or a small fee, tons of free CEUs as well as online webinars. Best of all, it won't outdate like a book will. Chances are your hospital has a continuing ed allowance for the year and then it'll be free! Even if it's not, having that professional organization membership is just something to be proud of!