Porous media, with their distinctive structure, are indispensable in both scientific inquiry and engineering endeavors. Their specialized composition makes them versatile, finding utility in diverse domains ranging from subterranean aquifers to innovative energy converters, and from biomedical technologies to environmental solutions. The intricate pore networks within porous media serve as reservoirs for fluids and gases while significantly impacting the dynamics of transport processes. Thus, a comprehensive understanding of their inherent traits and behaviors is imperative for enhancing their operational efficiency and resolving pertinent engineering challenges. This comprehensive volume explores the latest transport advancements in porous media applications, from measuring relative permeability to designing metal foam flow fields in fuel cells. With a focus on cutting-edge methodologies and technologies, such as microstructure reconstruction and hierarchical porous catalysts, this book aims to inspire innovation and drive progress in porous media applications. Offering insights into emerging trends and future directions, this book is a valuable resource for researchers, engineers, and students looking to make a significant impact in energy, environment, and engineering challenges. Dive into the world of porous media and uncover new opportunities for collaboration and development in this dynamic field.