Michael Welch, since completing his PhD at Birmingham University in 1997, has worked as an applied structural geologist in various consultancies and academic positions. His focus has always been on applied research in structural geology, developing new tools and techniques to solve specific problems, and working with industry to apply those techniques. This work has aimed to understanding and predicting the occurrence and effects of fractures and faults in the subsurface, originally in the hydrocarbon industry and more recently for carbon sequestration projects. He has presented much of this work in publications and international conference presentations.Mikael Lüthje did his PhD at Cambridge University, University College London and Danish Technical University in geophysics and applied mathematics in 2005. Throughout his career, he has worked in academia, research and development, and the industry. His focus has, among others, been on fluid flow modelling in a range ofvarious media, including fractured reservoirs. Currently, his work and research is centered on carbon sequestration, deep geothermal and hydrogen storage, and deep learning techniques for geophysical applications.