This is the essential guide to Tidal Streams, clearly explained through a seamless blend of simple descriptions and rich infographics.

An essential guide to Tides, clearly explained through a seamless blend of simple descriptions and rich infographics.

The 2019 edition of the Principles of Navigation and 2018 edition of Astro Navigation

The ‘Regulations for Preventing Collisions at Sea’ (basically, ‘Traffic Rules at Sea) should be essential reference material for every seafarer. Surfboarders to super tanker crews should all have the same knowledge and interpretation of the rules.

Author: Captain Dr. Ivica Tijardovic

The Practical Guide to Celestial Navigation: Step-by-step instructions for when you've lost the plot