Not an exceptional book, with too many variations on boring tricks. Most of the tricks require di lay a certain number of cards (maybe all the deck!) on the table, and this is not really entertaining... you can obtain the same results with other methods. The potential (binary coding - of course) is however good, but the delivery isn't. Most of the effects use the Si Stebbins stack, or a special stack devised by Boudreau. It has some interesting concepts, though, that are worth examining. Check the index for the marked effects: are the worthy ones.