There's a Customer Born Every Minute P.T. Barnum's Amazing 10 "Rings of Power" for Creating Fame, Fortune, and a Business Empire Today -- Guaranteed! Vitale Joe Innbundet / 2006 / Engelsk
It's the Customer, Stupid! 34 Wake-up Calls to Help You Stay Client-Focused Aun, Michael A Innbundet / 2011 / Engelsk
Mastering the World of Selling The Ultimate Training Resource from the Biggest Names in Sales Taylor, Eric Heftet / 2010 / Engelsk