Celestial navigation is one of the oldest of the mariner’s arts – and one of the most awe-inspiring. It is also essential for every ocean sailor who wants to be able to fix his position should the GPS fail.

This book shows you how to master the art in easy stages. Within a few pages you’ll be taking your first sight. From there it is a short step to plotting your position, wherever you may be on the world’s oceans.

With photographs, charts and diagrams to help your learning, you will be able to master the sextant and navigate using the sun, moon, planets and stars.