Witherby Seamanship International Ltd, is a specialist publisher of marine training, reference and regulatory materials, providing the finest books and publications to the shipping industry.
The eBooks are supplied with 1 licence + 1 backup and are not transferable between platforms. They are in EBK format for use on a single computer/laptop with Windows-based software. If you don't already have this software installed on your computer, it can be downloaded, free of charge here: http://www.seamanship.eu/download/freedownload.aspx?file=viewer. All eBooks are locked to a single computer.