What are the permissions of a shared library?
When creating a Shared Library, you can set permissions for each user:

Be sure to also check out the “advanced options” near the bottom for more specific permissions

What are the differences between the levels?
Admin
Admins can control everything about a library. They can add/remove users, change user permissions, add/delete content in the libraries, and delete or archive a library.
Owner (not available on all plans)
Owners have all the same permissions as Admins
Member
Members can add and delete content within the libraries.
Viewer
Users set to the read-only permissions will only be able to open, read and annotate the articles shared in the library. These users cannot add or remove any content or lists.
Please note that granular user roles are only available with our Academic Group and Enterprise packages. Standard license holders do not have access to this feature.
You can also do this after the shared library has been created by clicking on the Settings (gearbox icon) of your Shared Library from the main view and selecting “people and groups with access”
