Ummm...
Must Be a DVD?
I have red Juan's sonata, it has a chapter about knives, genius!(In his lecture DVD, there is a wonderful routine but with no explanations, but I think it may not so difficult to learn)
Ascanio also has a book about knives maybe named The Magic of Ascanio book vol.4? I haven't read it but I will~
Other routines in my mind is Daryl's in Fooler Dooler and Malone's in the On the Loose.
Anyway the advantage of knives is impromtu, you may not need a so sophisticated one.~

http://www.penguinmagic.com/p/S13173

Buy this book. it is great and so many moves. best book there is. for me the TURN WITH THE PINKY is the price of the book worth.

http://www.mymagic.com/ascanio.htm

I second the Ascanio book. Very clear steps. Explanation of the psychology.

Hi There, Knives - theres a lot of good advice on that topic already. Theres a another option out there. Flash/USB drives, check Chad Longs effect with color changing flash drives called "Flash", great effect, easy to do.

Please don't forget the use of a holdout, with any routine.
Hopefully, this will make your planning easier.

Aldo Colombini has a new Color Changing Knives DVD with a nice routine.

Check out Jim Sisti's "Grandpa's Fruit Knives," available from Lybrary.com. It's a simple routine that automatically resets. You only need 2 knives.

Also see Steve Draun's routine from World's Greatest Magic. It's a little bit more work, but it has a climax and automatically resets. From the same DVD Bill Malone has a 2-knife routine, but I think his is done more for laughs.

Joe Mogar's Chameleon Knives DVD is a good resource. I've recently bought coins and knives from him. His knives are top-notch and his service is very fast.

Pop Haydn's "Intricate Web of Distraction" is an excellent routine.

I agree with Pete Biro --look to come up with your own routine, which is what I'm working on now. I must say, though, that although the flashdrives routine and props may be nice, I think flashdrives are the wrong way to go. I just just don't think that there's the meaning and the storyline or comic potential of knives. I think the strong point of Chad Long's flashdrive routine is the growing effect at the end. I think a knife routine should end with either a growing or shrinking effect for greatest impact.

Fred Kaps routine is something to take a look at, but is in book form. The booklet, "World of Knives" has recently been reprinted.