Geomares Publishing has introduced a new training book ECDIS Basics, written by Professor Ralph Becker-Heins, which aims to give practical hands-on knowledge to all those who will be trained in the operational use of Electronic Chart Display and Information systems (ECDIS). The publishers explain that ECDIS is one of the most complex and sophisticated navigational tools on board a ship today. High quality training and instructions are therefore essential requirements and this is where this book can play an important role. For less experienced users, the book will help to gain an overview of the principles of ECDIS navigation and the related challenges. However, it is likely that advanced ECDIS operators will also be able to find new answers and helpful suggestions in this book.