John Jantsch

John Jantsch

John Jantsch is a marketing consultant, speaker and bestselling author of Duct Tape Marketing, Duct Tape Selling, The Commitment Engine, The Referral Engine and SEO for Growth which he co-wrote with Phil Singleton. Jantsch is the creator of the Duct Tape Marketing System and Duct Tape Marketing Consulting Network that trains and licenses small business marketing consultants around the world.

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