The International Space Science Institute (ISSI) is an Institute of Advanced Study where scientists from all over the world meet in a multi- and interdisciplinary setting to reach out for new scientific horizons. The main function is to contribute to the achievement of a deeper understanding of the results from different space missions, ground based observations and laboratory experiments, and adding value to those results through multidisciplinary research in the framework of International Teams, Workshops, Working Groups, Forums or as individual Visiting Scientists. The program of ISSI covers a wide spectrum of disciplines including the physics of the solar system and planetary sciences to astrophysics and cosmology, and from Earth sciences to astrobiology. ISSI international teams are composed of about 8-15 scientists of different laboratories, nationalities and expertise. International Space Science Institute supports Individual scientists research and publishes their work as books or in major scientific journals, with appropriate acknowledgement to ISSI. ISSI conducts workshop with ISSI Directors in consultation with the Science Committee. The programs and speakers are defined by a group of highly qualified experts serving as convenors. The Workshops of a week duration (in exceptional cases repeated) can be attended by 40-45 invited scientists and experts. The results of the Workshops are published as refereed papers in issues of Space Science Reviews and in parallel as volumes of the Space Science Series of ISSI (SSSI). The Space Sciences Series of ISSI books are coherent reports of the findings, discussions, and ideas that result from Workshops regularly held at the International Space Science Institute. These Volumes may be ordered for a reduced price through ISSI.