Professor Malcolm McMahon is Professor of High Pressure Physics at the University of Edinburgh. Malcolm's research interests are in using x-ray diffraction and scattering to investigate the behaviour of simple materials to extreme pressures and temperature. He is a frequent user of synchrotron light sources in the UK, Europe and the US, where he and his colleagues have developed techniques to collect and analyse diffraction data from both polycrystalline and single-crystal samples. Most recently, his research interests have moved to the use of dynamic compression techniques, utilising powerful laser sources and x-ray free electron lasers to push structural studies of matter beyond the current limits of static compression science. He was elected member of the AIRAPT Executive Committee in 2015. Email: mim@ph.ed.ac.uk