Part I. Black Holes in Galactic Nuclei: 1. Galaxy mergers, AGN feedback, binary black holes, tidal disruption; 2. Dynamics of stars and gas around black holes; 3. Accretion disks around supermassive black holes; Part II. Galactic and Extragalactic Globular Clusters: 4. Extragalactic globular cluster systems; 5. Globular star clusters in the Local Group; 6. Galactic globular clusters; 7. Dwarf galaxies, nuclear star clusters; 8. Nuclear star clusters; Part III. Gravitational Wave Emission, Observations, and the Link to Astrophysics: 9. Gravitational wave emission, space instruments, black holes in galaxies; Author index.