Here are Shane Nathan and Dave Espino. Did you know that you can make several KDP sales with a single Amazon KDP book? Many people download free promotional books. Everyone is aware of that. http://https://l1nk.dev/r9sfkb2 

However, very few people use free book promotions appropriately. To increase reading and reviews, the majority of KDP sellers employ a free book promotion. They then return the book to paid status after the promotion expires, and that's it. Future sales cannot be generated. After downloading and reading the free promo, what happens? They're done and most likely won't come back! However, Book #1 becomes your complimentary promo sample when you use a Binge Books Funnel. It draws the reader in and "hooks" them into the series. After that, people may continue reading your full series by purchasing Books 2, 3, 4, and more. You can now make several KDP sales with just one free promo reader. Thus, you now possess: A series A multiplier 👉 A funnel And now? You have a huge advantage because very few KDP publishers are doing this! https://l1nq.com/ud5pkkt