Does anyone have a link to describe (in pictures
) differing grinds (if grinds is a word).... the shape of the sharp bit???

Having had a bit of a search and the above is the best I can see. Some of the above will be labelled differently - eg the V (flat) grind looks like a Scandinavian grind, and the compound (double) bevel a Sabre grind.
I'm sure one of our knife making fraternity will soon enough drop in and thoroughly enlighten us
That it does....
Did just find this link which looks faitly informative re blade shapes as well as grinds (although I've not looked at it in detail).
forget it all..........get a Spyderco Sharpmaker !![]()
what more would you want ?