I decided it was past time to create a new banner for my "Business Page" on Facebook. You can see it here.
Here's my first attempt with two rows of seven Audiobook cover images:
I was unable to get it to display properly in the allocated space.
"Back to the Drawing Board." Lots of research and trial & error led to a 3-row 21-cover banner. It looks great here, but only displayed 2 of the rows on the business page. Worse, it's the bottom row, with my newest titles, that doesn't appear. When I muster more patience and strength I'll revisit this challenge.