This book offers a concise, yet comprehensive introduction to the engineering and other principles behind passenger cruise ships. It covers all the important regulations concerning cruise ship design and operation, as well as safety, stability, and environmental aspects. It describes principles of cruise ship hydrodynamics, structures, power plant and propulsion, as well as relevant machinery and control system. Further, it deals with key cruise ship hotel systems, such as air conditioning, freshwater, firefighting, garbage, wastewater and communication systems, and many more. Written in a concise, straightforward style, and including many original drawings, this book offers a unique, informative and inspiring guide, to students and professionals in the field of naval architecture and marine engineering, cruise ship owners and managers, and curious cruise ship passengers alike.