The US Power Squadron back in the pre-GPS 1980s used 'The American Practical Navigator-An Epitome of Navigation (1966)' as their primary reference book. My gran

The US Power Squadron back in the pre-GPS 1980s used 'The American Practical Navigator-An Epitome of Navigation (1966)' as their primary reference book. My grandfather ran one of the courses. Amazon(US) has a reprint of the 2002 version: http://www.amazon.com/The-American-Practical-Navigator-Bowditch/dp/0939837544 http://www.amazon.com/The-American-Practical-Navigator-Bowdi... But you can study it online gratis at: https://en.wikisource.org/wiki/The_American_Practical_Navigator https://en.wikisource.org/wiki/The_American_Practical_Naviga...