This is one of the finest DVD sets that I have reviewed and I wish that it had been available during an earlier stage of my magic development when I was working on such a routine. In a "Multiple Control and Revelation" card routine, you allow a large number of spectators, say, ten, to select cards, and then you find and reveal them in spectacular ways.
This two-disc DVD set, The Multiple Revelation Project, teaches six controls and some 65 ways to reveal a chosen card. It's not only a great resource on the multiple control/revelation, it's a great resource on card magic in general. I highly recommend this one and you can read my review here.