Add Catalog Field to show Last Modified date.

It is useful to check work done by volunteers on books in our library. I would like to be able to add a "Modified Date" field to a Display Style, and sort on this field, to see all recently modified books and check the work that has been done. Thank you!

Could always require the volunteers to place a private comment on last edit.

In my private library (no volunteers) I would appreciate this feature as well.

Yes, just as in a computer folder, it’s so useful to be able to sort by Last Modified. Most databases I’ve used stamp this automatically.