This book begins by tracing the history of sailing from its origins back to the Phoenicians. It chronicles the evolution of seamanship, focusing on the maritime innovations and contributions of Spanish sailors and navigators from the middle ages to the modern era. The author argues that Spain played a pivotal role in developing the science and the techniques that we now associate with the art and science of navigation. The book explores how Spanish seafarers, armed with these new skills and technologies, became pioneers of global exploration and major contributors to the Age of Discovery.