How to import photos and folders into Photos

Basically you can drag the folders with the photos directly into the Photos window or onto the Photos icon in the Dock.

Or use the command "File > Import" and select the the folder in the File Chooser panel.

The Photos will appear in the Last Import album. And Photos will warn about potential duplicates.

But if you want to create albums corresponding to folders in the Finder, use an Apple Script. Photos does not support to map the folder structure in the finder to albums. See this User Tip:

Import Folders of Image Files into Library as Albums

You can download a compiled version of the script as an application from this tutorial site: P01 - Applescripts from Photos’ User Tips Compiled as Applications

Thanks Old Toad, it worked.

I wish your website had a contact form or a comments section or something. I bet you've helped lots of people but there's no way to say thanks. Put a donate by Paypal button on your site.