Cold calls, emails, presentations, client meetings, door to door, business to business, every salesperson know how to do them. Salespeople learn to do this in practice, during company trainings, and sales conference. The rule and mechanics are almost universal, and the difference you hear is usually just a matter of semantics.
If the sales trade is an open book anyone can read, then why do salespeople get different results? Why do some people hit their quota, while some trail behind their targets?