This book presents an analytical review of the world’s construction of icebreakers, detailing the prospects of navigation along the North Sea Route. It provides the results of engineering and cost efficiency feasibility studies (ECSs) for arctic icebreakers and ice-going new generation transport ships forming part of the Russian merchant fleet. The book considers theoretical and experimental studies of ice performance of domestic icebreakers, provides the results of research into the design and construction of ice navigation transport ships, and discusses aspects of safe navigation in ice conditions. L.G. Tsoy graduated from the Leningrad Shipbuilding Institute in 1960. In 1997, he defended his doctoral thesis on the “Investigation of problems related to the design and substantiation of principal parameters and ice performance of icebreakers and icebreaking cargo ships”. He headed the Laboratory of Icebreaking Technology and Ice Performance of Ships of the Central Marine Research and Design Institute, Russia, for 35 years. As an Honorary Polar Explorer, he participated in 18 arctic expeditions and carried out studies in cooperation with shipbuilding companies from Finland, Germany, Korea, the USA, Norway, Japan and Canada. He has published 257 scientific works, including the books A Study of Ice-Going Performance and Substantiation of Rational Parameters for Ships Navigating in Ice and Sea Icebreakers: Specific Design Features.