The Bookshop Girl by Sylvia Bishop (author) and Ashley King (illustrator) (UK edition)

This story is about a little girl named Property Jones, so-called because she was left in the lost property cupboard of a bookshop when she was five years old.
Property loves living in the bookshop, but she has a whopper of a secret … she can’t actually read!
So Property doesn’t see the newspaper article announcing the chance to win the Montgomery Book Emporium, the biggest and most magnificent bookshop in the world!
When her family win the competition, Property finds herself moving to the Emporium, a magical place filled with floor upon floor of books and a very bad-tempered cat.
But all is not at it seems at the Emporium and soon Property Jones finds herself in a whole heap of trouble.