Sales Methods, Models and Theories

Sales Methods, Models and Theories

I say with a profound bitterness that so far we haven't found a way yet of transforming sales into a science. And it should be...
I've been a student of sales for the past 21 years. I try to read every author who becomes a best seller, every interesting article, etc. So many disappointments...
I know of 4 authors so far that agree on basic stuff and share most of their point of views. Brian Tracy, Jeffrey Gittomer, Paulo Soares and Dave Kurlan. All of them base their theories on studied practice, on studies with statistic relevance and studies made on other areas of knowledge.
If you surf the net looking for sales methods and theories you'll find lots of differences between them. There should be an effort of several "gurus" getting together.
Please add the name and a short summary of a any sales model you believe to be among the main ones in sales. Thanks...

		Mohammad Karimipour Manager, United States
	Different Sales Methods Because of Different Products and Tastes Because of the difference in products (low/high in (...)

		Antonio Rebelo Portugal
	Sales Methods and Models I agree each product/service requires a different (...)

		Jakosa Csilla
	Sales Methods, Models Good question, and I also wish there was a clear f (...)