Fluid interfaces are omnipresent in modern technologies, and their quantitative characterization is essential for their optimum use. Processes like emulsification, foaming or coating require the understanding of very dynamic properties. The enormous progress made recently by various types of simulations provides new opportunities for a much better foundation of highly dynamic experimental methods. This book is dedicated to present the state of the art of experimental methodologies and the numerous simulation techniques required for the quantification of many interfacial parameters.