Claude C. Hopkins (1866–1932) was an American advertiser and author. He introduced the slogan in advertising and popularised the use of test campaigns, especially using coupons in direct mail, to properly attribute marketing spend.
Claude C. Hopkins was born in Hillsdale on April 24, 1866, received his education at Ludington and later attended a commercial school in Grand Rapids.
He worked for various advertising companies, including Bissell Carpet Sweeper Company, Swift & Company, and Dr. Shoop's patent medicine company. According... plus
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