The five for five muck that eostresh is referring to on "The Unreal Work" is called "Demonstration Muck" (very creative, I know). The move was in the George Joseph book another member mentioned here, except George explained it with 2 cards (for blackjack, I believe). Paul does it in Shade, very cool looking.
As far as other sources:
Gambling Protection Series - Steve Forte
Ortiz on Card Cheating - Darwin Ortiz
Ultimate Work - Tony Giorgio
Those sources show essentially the meat and potatoes of card mucking. After that, you can make your own or add touches to existing ones.