If you have little or no knowledge of electronic charts, this is a must-read. If you have some knowledge, the book will improve your understanding and approach to the use of electronic charts. If you have good knowledge, the book’s approach will make you think a little harder as to how ECDIS can improve standards of navigation. Written especially for mariners this is guidance on how to develop the new mindset needed to use ECDIS safely and effectively. Over 100 full colour illustrations. Reprinted 2013.