The Browns Nautical Almanac 2021

The Almanac is arranged in parts that are numbered for ready reference from I to VII as follows:- I, Astronomical data in daily use by navigators, explanations of its use. II, Nautical Tables and Methods. III, Tide Tables The Tidal Constants for British Isles and Foreign Ports. IV, Coastal Courses and Distances around the British Isles. Courses are given Correct Magnetic (2017) and in True (3-figure) notation. Distances are given to the nearest 0.25 of a mile. The Table of Courses and Distances around the British Isles, North Sea, English Channel and the Baltic Ports. V, Distance Tables giving a world-wide coverage of total distances from the principal ports of Britain, U.S.A. and Canada, to all important ports of the world.
Numerous other tables give inter-port distances in the important areas. VI, Miscellaneous Information, Legal, Technical and General. VII, Lights, Beacons and Buoys of the British Isles including Eire and Channel Isles. Pilotage information.