Summary: Really neat book. I have wanted to tinker with an underwater robot for some time. Indeed, who hasn't wanted to build a submarine or something like it since they saw their first submarine war movie.
This book presents the fundamental design challenges in very clear English. There are 2 vehicle designs presented with plenty of diagrams and hints to avoid common pitfalls. The techniques for waterproofing the motors and control system are very simple and are commonly available in any hardware store or even already in the household. Great book to get one started in underwater robotics. And to finally fulfill that childhood dream.