Hand and computer contouring methods and techniques are explained in detail. All the basics of hand and computer conturing are collected in this book, including a summary of five of the most commonly used computer algorithms. Each algorithm explanation includes basics of how it works, steps to use it, advantages, disadvantages, when to use it and when not to use it. How to make your computer contour map look like a hand-drawn map and keep out extraneous mythical contours is a unique feature of this book. Also iincluded is a complete tutorial on 2D and 3D Variogram calculation and interpretation. The tutorial leads the user through the practical steps to calculating and interpreting variograms - the most crucial step in geostatistics. The guide is designed for earth scientists who want to learn how to use geostatistical techniques.