Colleen Lewis is an Assistant Professor of Computer Science at Harvey Mudd College and specializes in computer science education. Colleen has a PhD in education from the University of California, Berkeley. She researches how people learn computer science and how people feel about learning computer science. Her research seeks to identify effective teaching practices for creating equitable learning spaces where all students have the opportunity to learn. Colleen curates CSTeachingTips.org, an NSF-sponsored project for disseminating effective computer science teaching practices.