Martin van Ittersum holds a PhD in Agricultural and Environmental Science from Wageningen University. He is a professor at the Plant Production Systems group of the same university. His research and teaching focus on research concepts and methods for the analysis, design and integrated assessment of agricultural systems from field to farm, at regional and global levels. He applies these concepts to investigate opportunities for sustainable intensification of local and global food production. He (co-)developed and applied several of the concepts taught in this MOOC. He is currently co-leading the Global Yield Gap Atlas project that aims to map where and how much food production can be increased on existing agricultural land. He is also involved in research on resource use efficiency and environmental effects of different agricultural systems.