The aim and scope of this book primarily deals with conceptual design of sea-going marine vessels. While there are a few books on similar topics available to the reader, this book takes a different approach to address the developments of many different types of vessels. Of significant interest would be the estimation of principal parameters of such as vessels and the various coefficients required for design purposes. These parameters are obviously not readily available without carrying out an extensive search and background study. Hopefully, this textbook may be of relevance to designers and career naval architects who need a reference to initiate the design process.