Decided to add all unowned books.... yikes!

I think I'm going crazy. I have, until now, catalogued only the books I own and am going to keep. That has excluded about 5 big boxes of books that I'm in the process of selling/trading. However, I am now giving in and am dragging the boxes in here to catalogue all of them... I've read them and I want them in my catalogue dangit!

Now, obviously, this will mean adding "not owned" or something similar to my tags. *sigh* And I thought I'd be okay with just my current tags. Why has my mind got to be so stubborn?

Heather