This book provides a comprehensive coverage of the basic theoretical work required by marine engineering officers & electrotechnical officers (ETOs), putting into place key fundamental building blocks & topics in electrotechnology before progressing to more complex topics & electromagnetic systems. Revisions will include important new material on emergent technology such as image intensifiers, the increased maritime use of LEDs, examples of ship systems including power distribution systems, & references to modern ship systems, eg. GPS, ECDIS, Radar, AIS, Comms outfits, etc. This essential text offers a truly rigorous approach to the key topic of electrotechnology.