How can I find someone on 360?

I need help on ''Batman arkham asylum'' on Xbox 360. In the level where you have to find Dr.young papers before the joker, i search everywhere and didnt found it. can please someone tell me where and how to find it? tnx:)

• Answer:

  If you've not found it already it's at the very bottom of the circular library bit, there's a big beige book poking out with a hand print on it if I remember correctly :o)