"Copyright EDF free. Added drawings to the image not authorieed"
It used to say in tiny letters at the bottom of the page "permission to publish with overlays denied" or something like that.
I've specifically asked for permission to post the drawing in my hand of the five step pyramid but haven't recieved it. Each person who cares has to draw his own.
But it's freely published on blogspot, so any reposting/modifying for discussion on a forum is pretty clear-cut fair use.