ADMIRALTY List of Lights and Fog Signals provides coverage of over 85,000 light structures including lighthouses, lightships, lit floating marks, fog signals and other lights of navigational significance.Each volume of List of Lights and Fog Signals offers:Descriptions of the characteristics of lights and fog signals, together with the equivalent foreign language light descriptions, to help bridge crews with identificationTables to assist in the calculation of geographical and luminous ranges of lightsDetails for all lights listed including the international number, location and/or name, geographical position, characteristics and intensity, elevation in metres, range in sea miles and description of structurePublished in 14 regional volumes (A-P) for simplicity and ease of handling