Chart No. 1 is the international guide for the interpretation of chart symbols and abbreviations (see the descussion in Chart Trainer II at left). This is an indispensible book to have on board any vessel, because its information is not repeated in chart legends. It also provides important information about buoys, light visibility (range) and other aids to navigation. This latest edition from Paradise Cay is a complete and accurate duplication of information obtained from NOAA and NIMA. It is updated through Oct. 2000 Notice to Mariners. The Government Edition , last published in 1997 is no longer available.