The Secret History of Twin Peaks is an epistolary (dossier-style) novel by Mark Frost, which provides background information on the history of the fictional town and characters from the television series Twin Peaks. The book was published in October 2016, several months before the debut of a new season of the series in May 2017. A follow-up book, Twin Peaks: The Final Dossier, also written by Frost, was released after the new season aired. The audiobook release features four original cast members from the original and sequel television series, Kyle MacLachlan, Russ Tamblyn, Michael Horse, and David Patrick Kelly, joined by original cast member Chris Mulkey and cocreator Mark Frost, and introduces 2017 season actors Amy Shiels, Robert Knepper, and James Morrison. Source: Wikipedia (en)