Hi Susan
The embarrassment of not proofreading before hitting send

. My apologies. I can't see the book titles except on the Kindle so I have trouble working out what to download or re-download.
Normally on K4PC I sort by most recent and then on Calibre check the date of the last book downloaded. I then download anything I have bought from the date of the last book. As I have a 1500 or so books in K4PC and buy in batches so using hunt and peck to find the latest batch would be very time consuming. I rely on Sort By Most Recent.
Thanks
Mary