All motion is cyclic. It circulates to the limits of its possibilities and then returns to its starting point.
Robert CollierThe headline of an advertisement accounts for 60% of the pull of that ad. In the same way, the start of a letter makes or breaks the letter, because if the start does not interest your reader, he never gets down to the rest of your letter.
Robert CollierStudy your reader first - your product second. If you understand his reactions, and present those phases of your product that relate to his needs, then you cannot help but write a good letter.
Robert Collier