This is the complete and unabridged audio-book 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 audio-book you'll never waste money on ineffective advertising again.
An Author's Republic audio production.