The still photo presentation is an automatic slide show.
Slides will advance every 12 seconds on their own or you can advance the slides manually using either the arrows at the sides or the 'dots' at the bottom of the slides. You can also pause a slide by simply hovering your mouse over the slide (no clickin needed, just hover).
There are 34 slides in this presentation. Recommended viewing is on a personal computer or a tablet, not a phone.