American Practical Navigator Bowditch

The 2002 Bicentenial Edition of this mainstay of any serious navigator's library. The American Practical Navigator, known as “Bowditch”, originally written in 1799, is an extensive treatise on piloting, celestial navigation, and other nautical topics. Includes photos, fold-out charts, all tables, data, equations, and instructions needed to perform navigational calculations. There is no substitute for Bowditch.
Nathaniel Bowditch, 2002, HC, 896pp