The ACX Promotional Code (or more commonly, the Promo Code) is an advertising tool that ACX and Audible make available to their Authors, Publishers and Narrators on the Audiobook Creation Exchange platform. Among all of them it is certainly the most powerful of the tools, some would say “was”, but before explaining why we try to understand its main function. The Promo Code is, as the word itself says, a promotional code that allows Authors, Publishers and Narrators to promote their audiobook allowing the recipient to listen to the audiobook for free. This allows the listener to test the product