Colloid and interface science is an interdisciplinary field dedicated to the study of systems containing finely dispersed particles (colloids) and the phenomena occurring at the boundaries between phases (interfaces). It investigates the structure, properties, dynamics, and interactions of colloidal dispersions, emulsions, foams, aerosols, and porous materials, as well as the physical and chemical behavior of surfaces and interfaces, where surface area and interfacial forces play a dominant role. This research area is fundamental to understanding a wide range of natural processes and is crucial for developing technologies across materials science, chemistry, biology, environmental science, and various engineering disciplines.