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Author: John Caples. During his six-decade career at the top advertising firm of BBDO (Batten, Barton, Durstine & Osborn), author John Caples pioneered the techniques of effective copy-testing. All copywriters, from cub to chief, can benefit from his helpful suggestions.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.