The textbook "Adsorption and Phase Behaviour in Nanochannels and Nanotubes" offers a comprehensive analysis of the adsorption properties in nanoscale materials, particularly in nanotubular structures such as carbon nanotubes and zeolitic channels. These materials are characterized by their unique physical properties, which make them suitable for a variety of applications in engineering and IT. The book combines current research findings and theoretical approaches to investigate the adsorption behavior and phase behavior in nanoporous materials. It is aimed at professionals and students who wish to engage with the challenges and opportunities of nanotechnology. The contributions come from recognized experts in the field and provide both experimental and theoretical perspectives that deepen the understanding of the complex interactions in these materials.