Use your e-Shelf to save or "pin" your favorite items from the catalog for later reference.
(Note: You must be signed into your library account to perform this action)

Once you've pinned an item, you'll notice the  icon in the upper right-hand corner of the screen briefly turns red. 

To access and manage your "favorite" items, click the pin icon. Here, you can add or remove items at your leisure, or sort them into groups by adding your own customized labels.