[ColMac]

Hi Sabardeyn and thanks for your interest.

Originally Posted by Sabardeyn

I took a look through the Search & Sort section of the calibre manual but didn't see a reserved keyword that holds an author book count. Calibre definitely uses an equivalent function (per Tag Browser>Authors) but its either an internal function and/or computed on demand.

I had also read the manual before posting, so I'm glad that you have confirmed my view that there was nothing existing to utilise in any kind of custom column or similar.

Programmatically this might require several lines of code as I think you're dealing with an array, not just a simple count. So... probably not a minor task

As you'll see from my post above I'm not the right person to attempt even a minor task. So if this isn't a minor task, it is way way way beyond me.

Thanks anyway