Tim Bell is a professor in the Department of Computer Science and Software Engineering at the University of Canterbury, Aotearoa (New Zealand). His main research interest is computer science education. His “Computer Science Unplugged” project, which introduces students and teachers to computer science without using computers, is widely used internationally. In 2018 he received the ACM SIGCSE Outstanding Contribution to Computer Science Education award. He is also a qualified musician, and performs regularly on instruments that have black-and-white keyboards.