Brian Granger is an associate professor of physics and data science atCal Poly State University in San Luis Obispo, CA. His research focuseson building open-source tools for interactive computing, data science,and data visualization. Brian is a leader of the IPython project,co-founder of Project Jupyter, co-founder of the Altair project forstatistical visualization, and an active contributor to a number ofother open-source projects focused on data science in Python. He is anadvisory board member of NumFOCUS and a faculty fellow of the Cal PolyCenter for Innovation and Entrepreneurship.