Hoplophile gave some pretty good advice. I would only like to add a few of my own personal thoughts. If you haven't thrown much in the past, and aren't too good at sticking knives, start with something CHEAP. Because, until you get the hang of it, your knife will probably take a beating. Once you can stick your target in about 50% of your throws at close range, then consider using a better quality knife. Longer, heavier knives make better throwers than short lightweights. And, watch out for the recoil, as knives sometimes like to bounce off targets and fly back at you if you aren't careful. Also, folders make lousy throwers, simply because they are likely to break. The only folders I throw are the cheap ones that are on their way to the garbage can. This is their final salute.