This document provides information about advertising video on Twitter. It notes that 90% of Twitter's video views occur on mobile devices, allowing advertisers to reach a large, engaged mobile audience. All video views on Twitter are considered viewable as they require 3 seconds of play or a user expanding and unmuting a video. Advertisers can also leverage Twitter's targeting capabilities to distribute videos to specific audiences based on keywords, interests, and TV conversations. The document highlights data showing large growth in video consumption and engagement on Twitter from Q4 2014 to Q1 2015.