Originally Posted by TwinmtnNH
I downloaded a set of hundreds of books. (I guess they would have been someone's library. I am new to this.) When I went to add a few of the books I was interested in I saw the doubled author folder in the tree. It didn't look right thus my question. Thanks again for everyone's help.
That means it wasn't really a Calibre issue - just an odd folder structure created by someone else.
As an aside - I have fond memories of Twin Mountain NH
, if you're in the town in New Hampshire NE of Franconia Notch.