iBooks permissions all wrong

On upgrading to Mavericks the iBooks app was installed (I can't remember whether Mavericks did it or I did, tbh).
So far iBooks has not even been opened never mind used but on verifying disk permissions as part of occasional housekeeping I find that there are loads of permissions errors and they're all iBooks related.
Bearing in mind that the app has never been used, how would the errors have occurred? During installation?
Not a big worry, just wondering
Thank you

 

Oh, I see. Thanks