The video marketplace is evolving rapidly, and as the industry grows so too does its vocabulary. IAB has led a working group of members with the mission of compiling a comprehensive glossary of video terms currently used throughout the video marketplace. The glossary that you see here is the result of the tremendous effort put forth by these IAB member companies and their representatives.More than 200 terms were first identified for definition in September 2015. Since then, members have collectively refined that list of terms and submitted definitions for peer review and comment. The final list represents a truly collaborative effort that was made possible by a unified desire for clarity and consistency in video terminology by buyers and sellers alike.It is the hope of IAB and its members that this glossary will serve to facilitate better understanding and communication throughout the industry. As the video marketplace continues to change and expand, so too will this glossary. New terms will be added and others updated within this living document to reflect the changing landscape.