At first glance there seems to be a fragmented nature of the maritime digital solution market, yet, after reading this book the 'big picture' becomes clear and everything is put into the right context. Over the last decades, and after numerous projects, committee work, and industry initiatives (all described in this book), the contours of E-navigation eventually distilled to a clear structure. On one hand the E-navigation framework provides reliable guidance, but on the other hand leaves sufficient flexibility for further technological and also procedural advancements. Realisations of E-navigation are in use already, being closely linked e.g. with modern integrated ship-bridges, the layout of information on navigational screens, Maritime Single Windows, port-call optimisation platforms, even the entire multi-modal transport chain. Next to the initiatives is Europe, special attention is given to the enormous E-navigation project in the Republic of Korea, targeted to facilitate the country's transition from a ship-building nation to a leader in the maritime digital world. The book not only take s an actual summary of the E-navigation development, but also highlights benefits and opportunities for various stakeholders. The target group includes those operating the ships at sea and at port, business prime movers, formative maritime authorities, and researchers.