Dr. David Espíndola was born in Chillán, Chile, in 1986. He received the Ph.D. degree in physics from the Universidad de Santiago de Chile, Santiago, Chile, in 2012. As part of his Ph.D. dissertation, he studied the interaction wave-particle in granular materials. He pursued post-doctoral research at the Institut d’Alembert, Sorbonne Université, Paris, France, where he started conducting research on medical ultrasound. He also held a post-doctoral position with The University of North Carolina at Chapel Hill, Chapel Hill, NC, USA, where he also was a Research Assistant Professor. He is currently an Associate Professor at the Instituto de Ciencias de la Ingeniería at the Universidad de O’Higgins in Chile. His research interests are the linear and nonlinear elastic wave propagation in soft materials, ultrasound super-resolution imaging and the elasto-acoustics in complex medium.