Maarten de Hoop is the Simons Chair in Computational and Applied Mathematics and Earth Science at Rice University, USA. He is also a visiting faculty member at MIT and the Graduate University of Chinese Academy of Sciences and has been on the faculty of Purdue University and Colorado School of Mines. He received his Ph.D. in technical sciences from Delft University of Technology in the Netherlands in 1992. His research interests are in inverse problems, microlocal analysis and computation, and applications in exploration and global seismology and geodynamics. Over the last 20 years, de Hoop has received significant research support from the energy industry. At Purdue, de Hoop founded the Geo-Mathematical Imaging Group, an industry-university consortium project. He received the J. Clarence Karcher Award from the Society of Exploration Geophysicists and has been a fellow of the Institute of Physics since 2001.