My Calibre column is a bit more complicated. I've got Read, NotRead, ReRead, TBR, NotInterested, and Abandoned. NotRead being books that I acquire but don't actually have any _immediate_ interest in reading (extra books in a Baen Bundle, for example, or freebies that seem mildly interesting.) NotInterested are books that don't even manage to get to the NotRead level. TBR is books I'm actively interested in reading in the near term. The other categories are pretty self-evident.
Right now I have only 29 in my TBR, but then I have a bunch that haven't been categorized yet. My TBR collection actually contains ~100 books. Some of which have been there long enough that I guess I'm not all that interested.
