Santiago Bernal has been a research scientist for over 20 years at the University of Maryland, working in experimental and computational accelerator and beam physics. He obtained a BSc in physics from the Universidad Nacional de Colombia in Bogotá, Colombia, in 1981, an MSc in physics from Georgia Tech in 1983, and a PhD in physics from the University of Maryland, College Park, in 1999. He is the author of A Practical Introduction to Beam Physics and Particle Accelerators, Third Ed. (IOP Publishing Ltd, 2022). In addition to beam and accelerator physics, Dr Bernal is interested in statistical mechanics and educational aspects of physics.