Tierney Keller Brown is the director of training and professional development at the School District of Philadelphia and works with the Office of School Safety to create and deliver dynamic training content for a diverse group of learners. Tierney has worked in education research and implementation for 10 years, leading trainings, workshops, and digital learning engagements in 20 states for over 50 different education institutions within both K-12 and higher education. Currently, Tierney specializes in learning design, curriculum development, and virtual learning. She began her career in higher education and received a master's in higher education at George Mason University.