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This manuscript describes how you can use sound covertly for mentalism and magic. With a bit of practice you can make it as useful as a nail writer. This is a unique method that gets little mention in the mentalism literature. Here you have a complete course that will show you how to practice and how to turn it into an entire act.
1st edition 1970, 1st digital edition 2012.
word count: 2733 which is equivalent to 10 standard pages of text
