Explore the complexities of mudstone characterization in this comprehensive lecture by Professor Kevin Taylor from The University of Manchester. Delve into the challenges of compositional variability and multiple scales in mudstone analysis, and learn about advanced techniques including neutron source analysis. Discover the importance of upscaling, basic time considerations, and rig operations in mudstone research. Examine fracture propagation, CO2 experiments, barium precipitations, and shell swelling phenomena. Gain insights into the multiscale approach for studying mudstones and its implications for geoenergy systems and geodisposal. Understand the significance of microfractures, gas absorption, and observational work in this field. Conclude with a discussion on moving forward in mudstone research and potential collaboration opportunities.