Preface. 1. Introduction. 2. Stellar Distances. 3. Stellar Angular Diameters and Radii. 4. Stellar Flux Distributions. 5. Stellar Masses and Surface Gravities. 6. The Stellar Effective Temperature Scale. 7. Stellar Abundances. 8. Stellar Atmospheres. 9. Stellar Oscillations and Pulsations. 10. Stellar Models Versus Observations. 11. Stellar Interiors. 12. Evolved Stars. 13. Stellar Chemical Evolution. 14. Stellar Ages. 15. Conclusion. Discussion...