Presents an applied approach to the estimation of mineral resources/reserves. It is suitable for any university or mining school that offers courses on mineral resource/reserve estimation. It will also be valuable for professional mining and geological engineers and geologists working with mineral exploration companies. 1. Mineral inventory: an overview 2. Geological control of mineral inventory estimation 3. Continuity 4. Statistical concepts in mineral inventory estimation: an overview 5. Data and data quality 6. Exploratory data evaluation 7. Outliers 8. An introduction to geostatistical concepts 9. Spatial analysis: an introduction to semivariograms 10. Kriging 11. Global reserve/resource estimation 12. Grade-Tonnage curves 13. Local estimation of resources/reserves 14. Simulation: an introduction to conditional simulation 15. Bulk density 16. Dilution 17. Geostatistics and reality 18. Reserve/resource classification 19. Metal accounting Bibliography Appendices: A.1. British and international measurement systems: conversion A.2. US Standard sieves A.3. Drill hole and core diameters Index.