Start by looking at the photos at the back of the book - opening up a whole new world of the oceans as well as the history of undersea exploration .
Thoughtful approach to the history of going deeper into the seas by bringing the reader through the different layers of then ocean , with parallels into the thought and technological progress through the ages .
Fascinating read .
One highlight that I particularly enjoyed is to read about the interaction of early scientists / observers - Halley , Haldane , Boyle - their interaction of thought , theory , machinations ( actually forging with metals and pipes) and their interaction. sometimes rivalry, with their peers.
The dream to walk on the sea bed may sound less glamorous than walking in outer space - but it is , as this book will tell - it is equally challenging , dangerous and beautiful a journey .