Table of contents : Contents Preface Acknowledgments Chapter 1. Spiral Encounters 1.1. Chilean Interlude Chapter 2. The Realm of the White Nebulae Chapter 3. Spiral Nebulae and the Photographic Revolution 3.1. End of an Era 3.2. Nebulae: Ad Infinitum 3.3. Cataloguing Nebulae from Photographic Plates Chapter 4. From Nebulae to Galaxies 4.1. “Breathing” Stars 4.2. A “Great Debate” 4.3. Why is there a Cepheid P–L Relation? 4.4. Hubble and the Great Spirals in Triangulum and Andromeda Chapter 5. An Expanding Universe Chapter 6. The Hubble “Filing” System 6.1. Galaxy Morphology and Classification Circa 1960 6.2. “Filing System” Controversies 6.3. A “Zoo” of Galaxy Morphologies 6.4. In What Manner Do They Fade? Chapter 7. From RSA to NED 7.1. Gerard de Vaucouleurs and the “Reference Catalogues” 7.2. The World of Dwarf Galaxies 7.3. Magnitudes Today: The CCD Revolution 7.4. Luminosities and Angular Dimensions 7.5. The Last of Its Kind Chapter 8. Our Home Spiral Galaxy Chapter 9. Galactic Extinction and the Zone of Avoidance 9.1. The Distribution of Nearby Galaxies 9.2. Galactic “Lonely Hearts” Chapter 10. The Stars Within Chapter 11. Star Factories Chapter 12. M51: The 21st Century View Chapter 13. The Curtis/Ritchey “Novae” 13.1. Low Mass Stars 13.2. High Mass Stars and the Discovery of Supernovae Chapter 14. Rotating Pinwheels 14.1. Non-circular Motions in Spiral Galaxies 14.2. Dark Matter Today Chapter 15. Rings of Fire 15.1. Galactic Rings as Orbital Resonances 15.2. How do Galactic Rings Form? 15.3. Special Examples 15.3.1. Dead and Dying Rings 15.3.2. Traffic Pileup 15.3.3. Misaligned Bar and a Super Nuclear Ring of Fire 15.3.4. The “Quintessential Resonance Ring Galaxy” 15.3.5. Ghost Companion 15.3.6. Wing Tip Bar 15.3.7. X Marks the Center 15.3.8. False Barred Spiral 15.3.9. Four-leaf Clover and Feathers 15.3.10. The “Quintessential Non-barred Ringed Galaxy” Chapter 16. Waves of Density 16.1. Spirals as Density Waves 16.2. Spirals and the Inner 4:1 Resonance 16.3. What Causes Multi-armed and Flocculent Spirals? 16.4. What Drives Spiral Density Waves? 16.5. Backwards Galaxy or Backwards Astronomers? 16.6. Spiral Structure and Bars — More Recent Views 16.7. Red Spirals and the Galaxy Zoo Project Chapter 17. A Spiral Menagerie Chapter 18. Lifting the Dusty Veils Chapter 19. Strange Nuclei 19.1. Supermassive Black Holes: Up Close and Personal 19.2. Monster in the Milky Way 19.3. The Quasar Time Machine Chapter 20. Distant Spiral Galaxies 20.1. The Hubble Tuning Fork: Yesterday versus Today Chapter 21. The Nature of S0 Galaxies Chapter 22. Galactic Collisions and E Galaxies 22.1. Living in an E Galaxy Chapter 23. Spirals and the Extragalactic Distance Scale 23.1. The Extragalactic Distance Scale Today Epilogue Appendix A. Glossary Appendix B. Seeing Spiral Galaxies: A Tribute to Lord Rosse Index