When you open the Aura App you will see four quadrants: the top left contains all of the photos on your device, the bottom left is photo albums you've created, the top right is your Collections of the people and pets you take photos of most often, and the bottom left is your selected photos.
To add photos to your frame, you can select individual photos by tapping the empty circle in the corner of each photo. When a photo is selected it will have a green check in this circle and appear in your Selected tab; to remove the photo tap on the circle again to remove the check (this will not delete the photos from your phone, it will simply remove the photo from your frame).
Aura's Smart Select tool eliminates the need to go through and manage your photo library. Enable Smart Select for an album or Collection and Aura will filter the photos for you, avoiding images that are low contrast, blurry, duplicate, low resolution, or contain nudity. Smart Select is an easy and convenient way to display your best photos on your Aura Frame, plus any new photos you add the album or photos taken of that person you've enabled Smart Select for will automatically be added to your frame.