Click on the Activity Tab within the Deck that you have selected.

This shows three main statistics that include the Total Number of Presentations created, the Total Number of Slide Views, and the Total Number of Unique sessions (how many times this has been opened).

Allows you to search for a specific user and their specific activity over the time period set.

Breaks out and splits each slide individual slide into its own statistics. This shows which path the users go on and the time spent on that specific slide.

Shows the total number of presentations that each user has created. If you click on a user's profile, it shows specifically which presentations they have put together.