Sometimes I see a list of my files and sometimes I see thumbnail images. Why is that?

There are two main ways to view files in Library: list view and icon view. You may switch back and forth between the two views by clicking the list or icon buttons in the upper right-hand corner of your Library navigation bar. 

List View (click the grid icon to switch views):

Icon View (click the list icon to switch views):

If you have any doubts, don't hesitate to get in touch with us at [e-mail]