Navigation on board racing and cruising yachts has changed considerably in recent years.  As the title suggests, this book by Stuart Quarrie covers all aspects of a fascinating subject.  The layout makes it simple to extract information, while both the text and line diagrams explain a complex subject in easy-to-understand diagrams.

Anyone who is interested in navigation or tactics should have a copy whether or not they are 'the navigator' on a yacht.  Although aimed primarily at the racing yachtsman, there is plenty  which is applicable to the cruising sailor, especially the areas dealing with overall strategy and planning which are just as relevant whether cruising or racing.