How do you print photos from 2 different albums together on same page?

Hi

From photos - put them both temporarily in a third library (eg called print) (you can have the same photo in multiple libraries), and select them both for printing from there.

Or alternatively put them in a pages document and print from pages.

Another method is to put both of them into a temporary album, then select both and print. In the Print window select a print size small enough so both will print on one page.

Then delete the temporary album when done.

Use the All Library view so that you can Click one to select it, and Command-Click the second to select it without unselecting the first one. (I assume they are relatively close together in time so you don't have to hunt too far.