This is the complete and unabridged audiobook Scientific Advertising read from the original book by Claude C. Hopkins. Scientific Advertising was written by the advertising genius in 1923 and is cited by many Advertising and Internet Marketing personalities such as David Ogilvy, Gary Halbert, and Jay Abraham as a 'must-read' book. Hopkins used the techniques of testing and measuring the effectiveness of his ads by understanding and using the principles of psychology. After listening to this audiobook and applying the principles contained within you'll be more able to avoid paying for ineffective advertising.