7.7 Presenter Notes

Q: Why using presenter notes?

A: A common mistake in presentations, especially for presenters without much experience, is to stuff a slide with too much content. The consequence is either a speaker, out of breath, reading the so many words out loud, or the audience starting to read the slides quietly by themselves without listening. Slides are not papers or books, so you should try to be brief in the visual content of slides but verbose in verbal narratives. If you have a lot to say about a slide, but cannot remember everything, you may consider using presenter notes.


Q: How to add presenter notes in xaringan?

A: In xaringan, presenter notes are written with ???.

Everything after ??? (on the same slide) will not appear on the slide, but will show up in presenter mode when you press p to toggle presenter view.

---

The holy passion of Friendship is of so sweet and steady
and loyal and enduring a nature that it will last through
a whole lifetime...

???
This is notes for presenter only.

Q: What is the behavior of presenter mode?

A: The presenter mode shows thumbnails of the current slide and the next slide on the left, presenter notes on the right (see Section 7.3.5), and also a timer on the top right.

The keys c and p can be very useful when you present with your own computer connected to a second screen (such as a projector).

On the second screen, you can show the normal slides, while cloning the slides to your own computer screen and using the presenter mode.

Only you can see the presenter mode, which means only you can see presenter notes and the time, and preview the next slide. You may press t to restart the timer at any time.

⚠️ One thing to check: if you mirror your display instead of extending it, then the audience will see exactly what you see (including notes). To avoid this, make sure you use extended display mode so only you get the presenter view.

The figure below shows the Displays settings on macOS for extended display mode.

  • Do not check the box “Mirror Displays”.
  • Instead, separate the two displays, so you can drag the window with the normal view of slides to the second screen.

Ref: R Markdown: The Definitive Guide, Section 7.3.5