Since its first publication many years ago, this book has been a bestseller and is now a classic, appearing in its 4th updated German edition. In a practical pocket format with numerous clear tables and diagrams, the volume provides compact yet complete fundamentals that a skipper needs at sea. Information on electronic and traditional navigation, the calculation of positions, distances, and tides is complemented by chapters on traffic rules and safety at sea, meteorology, and knot tutorials. Comprehensive knowledge for both beginners and advanced sailors alike.