Advertising is the nonpersonal communication of information usually paid for and usually persuasive in nature about products, services or ideas by identified sponsors through the various media.

Advertising has, comparatively speaking, all the time in the world. Unlike personal selling, the sales message and its presentation does not have to be created on the spot with the customer watching. It can be created in as many ways as the writer can conceive, be rewritten, tested, modified, injected with every trick and appeal known to affect consumers.

Although advertisers may not see the individual customer, nor be able to modify the sales message according to that individual's reaction at the time, it does have research about customers. The research can identify potential customers, find what message elements might influence them, and figure out how best to get that message to them. Although the research is meaningless when applied to any particular individual, it is effective when applied to large group of customers.

Advertising can be par cheaper per potential customer than personal selling. Personal selling is extremely labor intensive, dealing with one customer at a time. Advertising deals with hundreds, thousands, or millions of customers at a time, reducing the cost per customer to mere pennies. In fact, advertising costs are determined in part using a formula to determine not cost per potential customer, but cost per thousand potential customers.

Advertising is a good idea as a sales tool. For small ticket items, such as chewing gum and guitar picks, advertising is cost effective to do the entire selling job. For large ticket items, such as cars and computers, advertising can do a large part of the selling job, and personal selling is used to complete and close the sale.