Every single element in an advertisement - headline, subhead, photo, and copy - must be put there not because it looks good, not because it sounds good, but because testing has shown that it works best!
John CaplesIn striving to produce an attractive headline, the copywriter should not emphasize the "quick, easy way" to such an extent that the headline becomes unbelievable.
John CaplesUnsuccessful headlines were not written without a strong appeal, but it was the wrong appeal for that product and that audience.
John CaplesRemember that the reader's attention is yours for only a single instant. They will not use up their valuable time trying to figure out what you mean.
John CaplesTo impress your offer on the mind of the reader or listener, it is necessary to put it into brief, simple language...No farfetched or obscure statement will stop them. You have got to hit them where they live in the heart or in the head. You have got to catch their eyes or ears with something simple, something direct, something they want.
John Caples