This reference offers information on the science and advances of wicking in porous materials. It describes various modeling approaches, traditional and modern, but maintains an emphasis on the modern methodologies. A host of internationally recognized scientists and researchers contribute chapters that describe the physics of wicking and the different approaches available for modeling wicking. Chapters cover measurement of wetting parameters such as surface tension and contact angle; the Washburn Equation; measurement of various quantities; wicking in rigid porous materials; wicking in swelling porous materials; and two-phase flow approaches to modeling wick flow.