SlideShare saw several trends in presentations in 2013: 1. Presentations became shorter, with fewer slides (average of 14.4 slides) and less text (average of 29 words per slide). 2. Visual content became more prominent, with more images (53% increase) and larger images and fonts. 3. The most popular presentations focused on business/management and technology topics. The fastest growing topic was automotive. 4. Mobile viewing increased dramatically (223% rise), with mobile viewers consuming more content on average than desktop viewers.