The book "Computational Science - ICCS 2009" offers a comprehensive insight into the challenges and advancements of computational sciences. It is based on the findings of the International Conference on Computational Science 2009, which brought together leading minds from various disciplines to discuss the role of computational sciences in both traditional and new research fields. The conference addressed the need to develop multiscale modeling, innovative algorithms, and dynamic, data-driven application systems. The contributions in this book reflect the interdisciplinary nature of computational sciences and their application in areas such as physics, astronomy, mathematics, music, digital media, biology, and engineering. The discussions and outcomes of the conference highlight the importance of computational sciences for the safety and well-being of society and emphasize the need for a revision of the education system to promote interdisciplinary studies.