Donald Cowper

Andrew Haynes, Donald Cowper, David Cowper — Mega-Selling

«No matter what your industry, no matter what your product, if you want to sell in the big leagues, this book is a revelation.», —Steve Carlson, Publisher and Editor, Marketing Options, «David Cowper is not just one of the world’s most successful life insurance salespeople, he is one of the cleverest. He thinks his way into [...]
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