According to some sales department there has been »more than one and a half million copies sold worldwide in thirty languages«. I know of these: english, french, german, italian, spanish, portuguese, dutch, swedish, danish, finnish, norwegian, estonian, czech, croatian, serbian, slovenian, hungarian, romanian, polish, turkish, and chinese. That’s twentyone, leaving at least nine to speculate about! What languages, and – most important – any local additions?
And yes, I know I’ve been obsessing a little over the different editions lately 😉