Traditional navigation with a sextant, an almanac, and a book of tables is still thriving, even with the availability of accurate, cheap GPS receivers. Batterie

The 12th edition of this bestselling book is proof of the success of Mary Blewitt's concise and clear style in explaining a particularly difficult skill, and it

Praised by The Practical Sailor as "a first-class piece of work," Susan P. Howell's Practical Celestial Navigation was developed for Mystic Seaport's navigation