I got the book's info from my college professor. He strongly recommends this book for me as a junior engineer. I found many useful tables and info from book that mostly I also get from job. Mr Barrie is a consulting engineer and he shared his experiences with us, I felt happy what he did. In the Cve field, most of the things are gathered from experiences. It is quite diffirence from the IT or EE field, it need much time to do it. Mr Barrie give us what he did in recent decades, and I hope we will done better.