Can't think of any book.
heres my two cents,
particpate in as many codes, unresponsives, resp arrest, any other critical patients as you can. Don't know something...ASK! Never assume anything. Always make sure your rooms ARE STOCKED and you understand how, when, and why you utilize your emergency kits. Delegate when you can. I understand tasks (ekg, lines, blood) are important but try not to focus solely on tasks - try to understand and assess the "big picture". When you're fresh, you need to put your self in new and uncomfortable positions the will allow knowledge growth.