The Robert Collier Letter Book

The Architecture of Persuasion: How to Write Well-Constructed Sales Letters

Michael Masterson

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Crackerjack Selling Secrets: Persuasion Strategies of the Most Successful Sales, Marketing, and Negotiation Pros Who Ever Lived

Ben Settle

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The Copywriter's Handbook: A Step-By-Step Guide To Writing Copy That Sells (4th Edition)

Robert W. Bly

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