Human history has been dictated by the ocean; the location of cities, access to resources, all revolved around water. In this book that will re-calibrate our view of this defining feature of our planet, physicist Helen Czerski dives deep to illuminate the murky depths of the ocean engine, examining the messengers, passengers and voyagers that live in it, travel over it, and survive because of it. The first ever book to examine the oceans in their totality.