Michael Fortin posted Claude Hopkins’ classic Scientific Advertising on his blog for everyone to read. Pick up a copy of this book or use the link above to read it online. It is a must-read if you’re spending money advertising online.
addthis_url = ‘http%3A%2F%2Fwww.tradeseo.com%2Fadvertising-measurements%2F’;
addthis_title = ‘How+To+Measure+Advertising’;
addthis_pub [...]

