A Collection is a group of items curated by a user, given a special title, and stored the the user's page. Collections can consist of a buyer's wishlist items, organized sections of a seller's shop, items that showcase a kids' style, curated items from a particular theme, hashtag collections, and more.
Here's an example of Violet's Closet's long-running hashtag #VCPICKS, now turned into a Collection:
Want to learn how to create your own collections?
We thought you might ask: How to Create a Collection
Want to share a collection with friends and prospective buyers?
We've got you covered there too: How to Share a Collection