1. Introduction -- 2. Physical properties of fluids in critical and pseudocritical regions -- 3. Power-plant "steam" generators working at supercritical pressures: review and status -- 4. Supercritical water-cooled nuclear reactor concepts: review and status -- 5. Experimental heat transfer to water at supercritical pressures -- 6. Experimental heat transfer to carbon dioxide at supercritical pressures -- 7. Experimental heat transfer to helium at supercritical pressures -- 8. Experimental heat transfer to other fluids at supercritical pressures -- 9. Heat-transfer enhancement at supercritical pressures -- 10. Experimental setups, procedures and data reduction at supercritical pressures -- 11. Practical prediction methods for heat transfer at supercritical pressures -- 12. Hydraulic resistance -- 13. Analytical approaches for estimating heat transfer and hydraulic resistance at near-critical and supercritical pressures -- 14. Flow stability at near-critical and supercritical pressures --15. Other problems related to supercritical pressures -- 16. Summary.