This text presents some late-1990s work by researchers in the newly emerging branch of fluid mechanics devoted to the study of lubricated transport of viscous materials. It is a field that has attracted researchers both in academia and industry because of its widespread applications. The major topics covered here include core-annular flows, paraffin deposition in pipelines, transportation of capsules, shear-induced migration of particles and contact lines. An overview is presented at the beginning. Lubricated transport of viscous materials has been a major focus of research in recent times because of its obvious industrial applications. There are four main types of lubricated flows: solids by liquids; liquids by other liquids; slurries with water; and turbulent gas with water. There are contributions by some of the experts in the field who have close links with industry. This book should be of interest to researchers in the field from both academia and industry, as well as petroleum engineers and graduate petroleum engineering students.