The question of the Symposium's title The Space Transportation Market: Evolution or Revolution? is answered from different viewpoints - the users, the launch service providers, the engineers, the lawyers, and various governmental organisations. In the future, the space transportation industry must provide several different cost-effective means for easy and rapid access to space in order to satisfy the demands of many different customers. This book is invaluable for all involved with rockets and space launchers, whether in industry, government, or academia.