LINK:

http://www.bajaseafaris.com/anchor.html

" One of my favorite subjects is anchors and anchoring. I've
owned, used or seen just about all of them in action. Some of you
might say, if you haven't used brand X type of anchor, how can you
judge it? Well, I also don't have to touch a flame on a stove top to
know I'll get burned! I watched someone else do it. Likewise, I've
seen a lot of anchors that really do the job, and some that would make
great decorations in a garden."

There is nothing like the discussion of achors. And I am not trying
to created one now. But the above link regarding such is above
average and relative to practical experience.