Marc Brackett is a Professor in the Child Study Center and founding director of the Yale Center for Emotional Intelligence at Yale University. He is the lead developer of RULER, an evidence-based approach to social and emotional learning that has been adopted by over 2,000 schools throughout the US, and across the globe, including the UK. he has published numerous scholarly articles and is the co-creator of the Mood Meter App. He also holds a black belt in Hapkido, a Korean martial art.