The scientific and technological progress of the past century has truely revolutionized clinical medicine. The 20th century was certainly so far the most successful and innovative period in medical history. The contributors in the present volume attempt to shine scientific light upon the most spectacular of the eastern medical procedures: acupuncture. The usage of advanced exploratory tools, such as ultrasound and magnetic resonance imaging, provides revealing insights. Even the most critical western scientist might become convinced that the observed effects are reproducible and are accessible to a scientific understanding. This volume fills a true gap and presents an up-to-date account of our scientific understanding of acupuncture.