Just how the advertising and marketing funnel works The earliest variation of a sales funnel that I'm able to find is this one from 1904 by Frank Hutchinson Dukesmith, editor of the Salesmanship publication Here, Dukesmith presented the idea of four stages that cause a sale: Attention, Rate Of Interest, Need as well as Sentence. Nearly half a century later on, an advertising as well as sales executive in the pharmaceutical market, Arthur F Peterson, released the adhering to picture in his book, Drug Marketing, Describing, and also Sales Educating: