Stephen Fishman has kept the tech-babble to a minimum while retaining all that is important concerning 'Electronics Aboard'. How a device works may t be necessary to your understanding of its use, but some things are simply interesting to learn. Stephen won't bore you with the details of how a microprocessor works or the theories of resistivity, but taking a moment to learn about sine waves and radio frequencies will be worth your time. Unlike many other electronics books, you will t be intimidated by the information you read in this book. It is written in a concise, easy to understand style. If you are the equivalent of a marine propeller head, run - do t walk - to the shelf where you found this book and put it back. You won't like it. But if you want plain-talk about truly useful equipment that can enrich your boating experience, you have definitely picked the right book.