James C. Lester is a Distinguished Professor of Computer Science and Director of the Center for Educational Informatics at North Carolina State University. He is a Fellow of the Association for the Advancement of Artificial Intelligence (AAAI). His research focuses on transforming education with technology-rich learning environments. Utilizing artificial intelligence, game technologies, and computational linguistics, he designs, develops, fields, and evaluates next-generation learning technologies for K-12 science, literacy, and computer science education. His work on personalized learning ranges from game-based learning environments and intelligent tutoring systems to affective computing, computational models of narrative, and natural language tutorial dialogue. The adaptive learning environments he and his colleagues develop have been used by thousands of students in K-12 classrooms throughout the US and internationally. He has been recognized with the Best Paper Awards at the International Conference on Artificial Intelligence in Education, the ACM International Conference on Intelligent User Interfaces, the AAAI Conference on Artificial Intelligence and Interactive Digital Entertainment, and the International Conference on User Modeling, Adaptation, and Personalization. He has served as Editor-in-Chief of the International Journal of Artificial Intelligence in Education. He is an Associate Editor of IEEE Transactions on Affective Computing, and he serves on the Steering Committee of IEEE Transactions on Learning Technologies and on the editorial board of Metacognition and Learning.