Advanced technologies in astronomy at various wavelengths have provided us with high-resolution and high-quality data of the central regions of nearby galaxies and of the Milky Way Galaxy. These data, both for the Galaxy and extragalactic centers, are now quite suitable for detailed comparative study. This IAU symposium was aimed at understanding the general characteristics of dynamics, ISM physics and magnetic fields, activities including inflow and outflow, as well as starburst, in the `galactic centers'. Special attention was also given to several cases for massive black holes in galaxies and the Galaxy, and to understanding the physics of nuclei associated with black holes.
Introduction. Part I: Stellar Cluster, Star Formation. 1. Galactic Bulges. 2. Galactic Center Star Clusters. 3. Star Formation and Starbursts. Part II: Nuclear Interstellar Medium.4. Neutral ISM in the Galactic Center. 5. Molecular Gas in Nuclei of Galaxies. 6. Gas Dynamics in the Galactic Center. 7. The Central Parsecs of the Milky Way. 8. Magnetic and High- Energy Phenomena. Part III: Black Holes andCentral Activity.9. Black Holes in Galaxies. 10. Case for Black Hole in the Galactic Center. 11. Black Hole Powering of AGN and Jets. 12. Summary.