I use a custom true/false column, 'Read', which is actually tri-state. No mark means I have the book (probably a freebie) but I don't have a plan to read it. Marked 'N' means I plan to read it, but haven't yet. And 'Y' means that I have read it.
I rather regret not having used a 'last read' date column instead (or as well?), but I'm not going to change now.
|