- Astrophysics Of Gaseous Nebulae And Active Galactic Nuclei
- Eye on the Sky: Lick Observatory's First Century
- Yerkes Observatory, 1892-1950: The Birth, Near Death, and Resurrection of a Scientific Research Institution
- Walter Baade: A Life in Astrophysics.
- James E. Keeler: Pioneer American Astrophysicist: And the Early Development of American Astrophysics








