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SPIN SELLING By Neil Rackman (Book Summary)
SPIN SELLING The best-validated sales method available today. By Neil Rackman Buy here from Amazon SPIN Selling: Situation, Problem, Implication, Need-Payoff SPIN Selling was published in 1988, and at that time it was considered to be the most heavily researched book on sales ever created. The research was compiled over 12 years and 35,000 sales […]