the book explains pretty well, but i wish i had a mentor. i've got a good start on a rock wall out back i'm making out of the flakes that did'nt.
i've broken many that were almost finished. with the amount of dug and found real points i and many others have recovered, the indians must have been more than prioficient. i understand a good knapper could turnout a point every couple of minuits. most were lost or broken with the first use. simple to art. they're very interesting.
i use an old round egg shaped river rock,(granite, i think) and whitetail antler tines with the tips fired and hardened. kinda like a red ryder bb gun, you'll put your eye out, so i wear glasses and a leather apron.