Vertical video gaining ground & in some cases getting up to 9 times more views ::design for it:: 

Vertical video

Although many professionals are still appalled by vertical video, the format is gaining ground. YouTube reported a 50% increase in vertical uploads in 2015, and Snapchat encourages media to shoot vertical, as the company says its shows and ads that are shot vertically perform up to nine times better than horizontal video.

Read the full piece at WAN-IFRA