Jonathan Stringfield is Global Head of Measurement and Insights at King. In this role he is responsible for integration of third-party ad effectiveness solutions & development of proprietary measurement solutions, custom research & measurement partnerships with brands and agencies, and execution of custom marketing and ad effectiveness research. Previously, Jonathan was Director, Marketing Insights and Analytics at Twitter where he was responsible for all measurement and ad effectiveness research for Twitter’s U.S. business. Prior to his time at Twitter, Jonathan was an early member of Facebook’s measurement solutions research team, and was responsible for global retail measurement research. Jonathan’s early career focused on leading demographic research for Nielsen’s TV and media research services. Jonathan holds a PhD in Sociology, where his NSF-funded research focused on identity and audience conceptions among users of social media utilities.