This book covers extensive ground in the estimation of mineral resources/reserves. While covering the classic geometric methods of estimation, it extensively presents the modern statistical/geostatistical techniques of estimation. In doing so, the supporting mathematical/statistical background, essential to facilitating the understanding of modern techniques, is also included. All information presented in the book is supported by extensive explanatory diagrams. The book also covers mine planning/scheduling as well as the international codes for classification of ore reserves. This book will be of interest to all types of mining geologists, as it serves the interests of field geologists involved in surveying, drilling, and mapping as well as those who are responsible for field data analysis/interpretation and defining the geometry of orebodies. This book is a comprehensive standalone textbook which is useful for both students and as a source of reference for mining geologists.