Most of the stuff I have is just basic "how to" and doesn't really get into knife-making as that takes a little more practice than just basic flaking. Not sure how to attach a PDF to the forums either.. gotta figure that out.
Honestly, the best way, is to be shown by someone who already knows, even if it's just a few minutes. Do you understand the basics of knapping (spalling, percussion, and flaking)?
I got a free PDF from here :
http://www.arrowhead-maker.com/
that really only covers basic stuff.. Not sure quite how advanced you are AS, but I get the impression you are above the level of this article.