Physics of Thin Films has been one of the longest running continuing series in thin film science consisting of 20 volumes since 1963. The series contains some of the highest quality studies of the properties ofvarious thin films materials and systems.In order to be able to reflect the development of todays science and to cover all modern aspects of thin films, the series, beginning with Volume 20, will move beyond the basic physics of thin films. It will address the most important aspects of both inorganic and organic thin films, in both their theoretical as well as technological aspects. Therefore, in order to reflect the modern technology-oriented problems, the title has been slightly modified from Physics of Thin Films to Thin Films.Edited by Abraham Ulman, Organic Thin Films and Surfaces: Directions for the Nineties will be the first volume to link two dynamic areas in the physical sciences—organic thin films and surface science. Contributions from leading experts in the field cover a range of important topics on the processing, characterization, and applications of organic thin films.