Youngprer, you once mentioned the tingling sensation when you read.
Whatever method you use to relax is fine. Paul teached the 3 to 1 method and there are heaps of others that work just as well. When you reached the point of being able to relax enough by just taking in a deep breath you start doing it naturally.
As for finding your book. Get into your relaxed state... and see if you can deepen it even further for this. When you are relaxed, think of the last time you remember having your book... did you show it to one of your classmates, were you reading it in bed, remember as many occasions as you can when you had the book and try and identify when was the last time. Usually from there you can track it down.
Now I'm sure you've checked under your bed and in the other school bag for the book so it's time to resort to asking that inner mind to tell you where it is. Activate the location of the book ask some questions of your mind. 
Alex
