Reflecting the rapid advances across many fields, this Encyclopedia transcends the broad, multidisciplinary scope of interface science and draws together the interface-related aspects of chemistry, materials sciences and engineering, biology, physics, computer sciences, and applied mathematics. It offers entries that define terminology, demystify concepts, highlight key references, and identify important applications, including catalysis, foods, filtration, lubrication, mineral processing, paints, pharmaceuticals, polymers, soaps, and soils. This reference also provides insiders’ perspectives into new directions for future research and development in their fields of expertise.