What is with top-tier criminals and antique bookshops?
It’s a sort of cliché, the international man (or woman) of mystery that in their everyday life manage an antique book shop somewhere cool and elegant.
In the case of Anna, the character portrayed by Meggie Q in The Protégé, the antique book shop is in London. And as it usually happens in this sort of movies, it will be thoroughly thrashed sometime around the end of the first reel.