Because Billy Wells Breaks new ground with the classic duplicate card principle. Introducing "The Dupel Deck"; Billy's adaption of an old idea that always keeps you "one-ahead" of the audience. Although some of the effects are suitable for close-up settings, the majority have been created for stage and polished through hundreds of stand-up presentations. In addition to his excellent routines, Billy has included indispensible tips on related props and sleights. Duplicate Deceptions is an investment that will pay big returns to you again and again.