Question:     What is Insertion Selling? Answer:   Insertion Selling was invented by Peter Mingils of PM Marketing to give you a fun and effective approach to selling. By inserting certain words that the seller and the future buyer provide in a certain way, a creative dialogue opens up new levels of selling. It's fun, it's easy and we teach Insertion Selling as part of the Making Sales or Excuses Training or the Making Sales or Excuses Mini- Sales Course.