Lameco Eskrima Essential Knife 1 DVD by Dave Gould

The Lameco Escrima knife DVDs by David Gould are some of the best I've seen . Truly amazing and talented martial arts instructor .

If you're seriously into knife use in fighting, Guro Gould has presented here some absolutely necessary principles and techniques that are pertinent to other weapons, too, as well as to empty handed self defense. The presentation is clear and direct to the point, without unnecessary "flash" - strictly functional combat stuff.
All the material is shown in resistance drills and "live" work, so you'll be sure it works, but mostly important, you'll be able to see how much effort and intensity it takes to be good in this endeavor.