Advertising is salesmanship mass produced. No one would bother to use advertising if he could talk to all his prospects face-to-face. But he can't.
It takes great salesmanship to convince a customer to buy something from you that isn't built or isn't finished.
I still remember the five points of salesmanship: attention, interest, conviction, desire and close.
Salesmanship is limitless. Our very living is selling. We are all salespeople.
Salesmanship, too, is an art; the perfection of its technique requires study and practice.