Mathias Kläui is professor of physics at Johannes Gutenberg-University Mainz and Director of the Center for Dynamics and Topology. He studied at RWTH Aachen University and received his PhD at the University of Cambridge, after which he joined the IBM Research Labs in Zürich. He was a junior group leader at the University of Konstanz and then became associate professor in a joint appointment between the EPFL and the PSI in Switzerland before moving to Mainz. Since 2017 he has been Adjunct Professor in the Center for Quantum Spintronics at the Norwegian University of Science and Technology. His work focuses on nanomagnetism and spin dynamics on the nanoscale in new materials. His research covers from blue sky fundamental science to applied projects with major industrial partners. He has published more than 290 articles and given more than 220 invited talks. He is a Senior member of the IEEE and has been elected to the technical and administrative committees of the magnetics society. He is also a Fellow of the IOP and the European Academy of Sciences and has been awarded a number of prizes and scholarships as well as three grants of the European Research Council.