A collection is a themed group of photos and memories: a summer trip, a wedding, Grandma's recipes, or every Thanksgiving.
Making a collection
Go to Memories > Collections and start a new one.
Name it and choose a type.
Add photos now, or any time later from the collection's page.
Sharing a collection
You can create a share link so people outside your family can view the collection. Anyone with the link can view it, but they can't add to it. Share links expire after 30 days. You can also notify your family when a collection is ready.