John Caples
Retrieve the information about John Caples and his books on the go! Keep your project up to date with the ISBNdb book database searchable via API with 19 data points per book available.
Tested advertising methods
Making Ads Pay: Timeless Tips for Successful Copywriting
How to Make Your Advertising Make Money
How to Make Your Advertising Make Money
How to Make Your Advertising Make Money
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