A purchase funnel maps how potential customers move from awareness to consideration and finally conversion. Online, it also shows where visitors leave before reaching a site’s call to action (CTA), helping you improve the path. section 12.1 section 12.7
The funnel narrows through three stages:
- Acquisition builds awareness, creates interest, and presents the product as a possible solution. section 12.1
- Consideration begins when potential customers engage with the business and compare its offering with alternatives. section 12.1
- Conversion persuades the potential customer to take the intended action, such as subscribing, downloading, sharing an email address, or buying. section 12.1 section 12.7
A vacuum-sales funnel
A salesperson first attracts attention by revealing dirt left behind by an ordinary vacuum, then highlights the visible difference, and finally asks for the purchase. The dialogue illustrates acquisition, consideration, and conversion in sequence. section 12.1
Figure 12.1 The funnel process—a dialogue between salesman and customer—is well known as an effective way to turn someone into a buyer. (Courtesy of the specialized GPT Diagrams: Show Me)
A diagram visualizes the funnel as a narrowing dialogue between salesperson and customer. section 12.1

