WordPress Post [backlight album = ?]

I’ve had the Backlight Wordpress module for quite some time and have simply not taken the time to use it. I have it installed correctly (very basic). In fact, I created a post in October of 2020, but the part of the post I’m having trouble remembering how it was done was adding/discovering the numeric value associated with the album that I would want to share. I realize I can use the short code [backlight album=“XXXXXXX” columns=“X] format, but where am I getting the album number from?

I realize this has to be the most basic of basic questions, but I’m clearly just missing something fundamental.

check out the video Matt has on the shortcode document page:

Thanks Rod. I was obviously not searching correctly.