Haakon Fossen is Professor of Structural Geology at the University of Bergen, Norway, where he is affiliated with the Department of Earth Science and the Natural History Collections. His professional career has involved work as an exploration and production geologist/geophysicist for Statoil and as a Professor at the University of Bergen (1996 to present), in addition to periods of geologic mapping and mineral exploration in Norway. His research ranges from hard to soft rocks and includes studies of folds, shear zones, formation and collapse of orogenic belts, numerical modelling of deformation (transpression), the evolution of rifts, and studies of deformed porous sandstones. He has conducted extensive field work in various parts of the world, notably Norway, the Western United States, Sinai, and Brazil, and his research is based on field mapping, microscopy, physical and numerical modelling, geochronology, and seismic interpretation. Professor Fossen has been involved in editing several international geology journals, has authored over 100 scientific publications, and has written two other books and several book chapters. He holds the first Nordic Geoscientist Award and the Outstanding Paper Award (together with Basil Tikoff) of the Structural Geology and Tectonics Division of the Geological Society of America, of which he is also a Fellow. He has taught undergraduate structural geology courses and graduate and industry structural geology field courses for over twenty years and has a keen interest in developing electronic teaching resources to aid student visualization and understanding of geological structures.