12 Steps to Finding the Perfect how do sales funnels work
https://www.scribd.com/document/414059097/This-Week-s-Top-Stories-About-clickfunnels-pricing-2019
The purchase funnel, or getting funnel, is often a client centered marketing model which illustrates the theoretical purchaser journey towards the purchase of a services or products. In 1898, E. St. Elmo Lewis