User Category Help

[rdyornot]

I've created some hierarchal user categories to track my favorite books, the hierarchy is:

Favorites

• Authors
• Series
• Books (for individual books not in a series)

When I drag an author's name from the Search & Sort window to the Authors user category in the tag browser, the author's name gets added to the Authors category. Dragging a series' name works the same way, adding that series to the user category.

"Books" does not work. Dragging a book title doesn't add that book to the Book user categorty - is this intended? or a bug? Is there a workaround?

Thanks

edit:
Wondering if the problem was the name of the 'Books' user category, I tried changing it, but still no luck.