There is an audio narration for each slide. With the play back icon at to top right corner, you can turn it off or adjust the volume If you are using a tablet or smartphone, the audio version does not work. Click the link below to access a version without audio. http://alow.magix.net/hfppnoaudio/ Mouse-over or tap in the lower left corner to see the navigation menu.

Use arrow keys for navigation.

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