Following an accounting adjustment in October, authors who produce and sell their own audiobooks through Audible’s ACX became aware of the significant extent to which “returned” and “exchanged” audiobooks — encouraged by Audible itself — have been cutting into their proceeds. Returns and exchanges turned out to comprise “15% to 50% or more of lost sales over time” for many authors. One author, Susan May, published a lengthy post about her experience. More authors have traded stories and strategies in a Facebook group “to come together to persuade ACX & Audible to give us a fair deal on our audiobooks.” […]