You're dead, marincounty. I've never seen it before, where someone's comments can be dead sometimes and available others.

The mechanism is called 'vouch'.

I have that book.

It's good for other field too. I've know union Electricians who didn't know how a three way switch works. They could wire it, but couldn't conceptualize it. Same with relay, and transformers.

It wasen't there fault. They just weren't taught it in the right fashion.

I do feel the book is dry though. I don't feel you need to read it front to back. I personally got more out of the diagrams, than the writing.

(My pet peeve in most technical books is the apparent lack of editing. If anyone is on the road to writing a technical book; there is nothing wrong with short books. People will pay for short books. Less is more--much of the time.)