Contents: 1. Soil: pedological and edaphological concept. 2. Origin of earth. 3. Weathering. 4. Components of soil. 5. Soil formation: factors and processes. 6. The soil profile and its layers. 7. Soil physical properties. 8. Soil classification. 9. Soils of India. 10. Soil water. 11. Methods of determination of soil moisture. 12. Thermal properties of soil. 13. Soil air. 14. Soil colloids. 15. Layer silicate clays: genesis and classification. 16. Absorption of ions and ion exchange. 17. Soil organic matter. 18. Carbon cycle. 19. Soil biology. 20. Biomass. 21. Glossary.