Popular presentations have more slides. While most presentations are short (19 slides on average), popular presentations are longer (63 slides on average).

Popular presentations use fewer words. On average popular presentations only used 24 words per slide.

On average women use fewer slides than men. Women use 18 slides per presentation while men use 20 on average.

Nationalities present differently. Japanese language presenters use the most slides on average—42 slides per presentation. English language presenters, on the other hand, use the fewest slides per presentation—19.

Apple Keynote users make popular presentations. While Keynote was only used by 2% of the presenters, 16% of the most popular presentations were made using Keynote.

Business, trends and statistics dominate popular tags. Tags are words used to describe presentations on SlideShare. The most popular presentation tags for 2010 included business, market, trends, research, social media and statistics.

Popular presentations don’t use serifs. While 10% of popular presentations used the serif font Times New Roman, the majority of popular presentations included fonts without serifs such as Arial and Helvetica.