Professor Ivan Marusic is an internationally leading figure in the field of fluid mechanics who has made fundamental and seminal contributions across a number of areas, most notably in advancing our understanding of wall-bounded turbulent flows. His research has resulted in the discovery of “superstructures” and uncovering the key role these large-scale motions play in wall turbulence. This in turn has led to new predictive tools based on physical modelling concepts. His research has also pioneered the development of novel analysis tools, experimental methods and instrumentation, which have produced unique datasets vital for our understanding of turbulent flows.