In the interruption model, your asset is the media buy (ads). In the permission model, your asset is the relationship. Godin argues that permission is a renewable resource. It decays. If you stop being remarkable, interesting, or useful, your permission expires. You must continually earn the right to stay in your customer’s inbox.

: Detailed PDF summaries and slide decks that cover the core concepts are available on platforms like Slideshare Google Books provides a substantial preview of the text. Slideshare Core Concepts for Your Report