I'm not sure how I discovered him, but nevertheless I did, and I've been reading his marketing books. You should, too.
All of his books are titled No B.S. Sales Success the Ultimate No Holds Barred Kick Butt Take No Prisoners...Guide" For an example, here the complete title of one, so you can get the idea: No B.S. Sales Success the Ultimate No Holds Barred Kick Butt Take No Prisoners & Make Tons of Money Guide."
Dan Kennedy is a guy who claims to be rich (probably is) and made it with his talent for writing ads, giving marketing seminars, and direct mail. He enjoys telling stories about how he is so much in demand that he doesn't read or answer email, only talks to people who have pre-arranged the telephone call with his gate keeper, charges a big fee for his advice as well as demands a participation in the profits of the sales increase, etc.
But I forgive him for his egomaniacal behavior because his advice and his methods have value to me, and they will to you, too.
So far I've read three of his books. I have no idea how many more titles there are, but I'll bet there are at least three more. I've bought mine at Half-Price Books for about four bucks a piece.

BILL CHERRY, REALTORS
DALLAS
OUR 44TH YEAR SELLING AMERICA!
214 503-8563
1-800-314-7110
Thanks for the information - Your post is very consice & helpful!
Best, Dan