All users on the system you can upload content to Your Bookshelf for easy keeping and quick access. See how all users do this here.

As a Client Admin you also have access to users Bookshelf. There are 2 main access features:
1) Admin and Leaders have the ability to view users Bookshelves. This allows admin and leaders to have students upload content, articles, links, required assignments, etc., and then view them easily per student. 

2) Assignments can be set to push to bookshelf. Once the assignment is complete, as PDF of the users completed assignment can be viewed and downloaded by the user, and admin, in the users Bookshelf.

View a users Bookshelf
Go to Members

     

Search for your user and click the View Bookshelf button

    

Their Bookshelf will appear