ALL THE OFFICIAL NAUTICAL CHART SYMBOLS. Up-to-date for 2018. Point the code reader on your phone at the QR code in the book and the color photos and videos will open like magic.-. Save to the home screen, and you will have them on your phone for ready reference forever. Use your fingers to expand the symbols to very large size at high resolution. This is THE modern version with QR code links. U.S. Chart No. 1 describes the symbols, abbreviations, and terms used on nautical charts. It is produced by NOAA and the National Geospatial-Intelligence Agency. The symbols for paper charts and their analogous digital products, such as NOAA raster navigational charts (NOAA RNC(R)) are shown, as well as the symbols used to portray NOAA electronic navigational charts (NOAA ENC(R)) data on Electronic Chart Display and Information Systems (ECDIS). EVERY symbol for EVERY chart. Every US chart, every International chart and every electronic chart. Every type of chart and every symbol WORLDWIDE. We have included a QR code to download a free app. Huge amount of useful navigational information is included including 100 videos. The app includes links to official websites including Wikipedia, NOAA, NGA, and IHO. Also links to an up-to-date online official full color pdf. VIDEOS are also included. The app shows every symbol in detail and allows two finger magnification. ECIDS specifications and explanations are in the app. Links to International specifications are in the app. Links to USCG and US agencies are in the app. Not just a book but a complete resource for all mariners.