Michael Unser is Professor in the Institute of Electrical and Micro Engineering, EPFL, Switzerland, where he also heads the Center for Imaging. He is a Fellow of the IEEE, an elected member of the Swiss Academy of Engineering Sciences, and a EURASIP Fellow. He is recipient of the 2008 Technical Achievement Award of the IEEE Signal Processing Society and the 2020 Academic Career Achievement Award from the IEEE Engineering in Medicine and Biology Society. He is co-author of An Introduction to Sparse Stochastic Processes (Cambridge 2014).