Packages
A package is a snapshot of a collection, published so others can use it: a research starter kit, a design resource pack, a reading list.
Browsing and importing
Find packages in the Store under Packages. Each package page shows what is inside before you commit. Importing copies the package contents into a collection in your workspace — after that it is yours to reorganize.
Publishing
Any collection can become a package: publishing takes a snapshot of the collection at that moment. Later changes to your collection do not affect the published package until you publish again.
Packages vs sharing
Sharing gives people access to your live collection. A package is a copy — recipients get their own version, and your original stays private.