[trent4101]

Seems like a bug, its strange at least.  If you press Ctrl+Shift to bring up all mobiles it looks like there is a residual image left behind from where someone did they're .look, as you'll see below there's a few near the training area.  I did try to edit one and was unable to do so, so nothing all that harmful except for maybe system clutter.

[Lyrrin]

I've seen this before! But the books disappeared later, probably on next shard reboot? Definitely something to look into.