gramma explanation

AnonymousCan you explain exact meaning of phrase:a new customer's book.is it new book of customer or book of new customer?

As it stands without context, it could be either.

Thanks for prompt answer.
The complete sequence itself doesn't explain it at all. That's was the reason of my question - if there is any grammar rule for it.
The sequence is as follow:
"You have been asked to read a new customer's book to help understand the subject."
There is no more references to customer or book just about subject...

AnonymousYou have been asked to read a new customer's book to help understand the subject.

I would think, then that it is—if the writer has been careful—a book written by a new customer. If it were an old customer who had a new book, he would write 'a customer's new book'.

Thanks a lot again.