arXiv · 2609.33950
"Is This Book AI-Generated?" How Authorship Suspicion Manifests in Marketplace Reviews
Abstract
As AI becomes part of how books are authored, reader response to suspected AI authorship grows more consequential, yet remains unexamined. We analyze 863 low-star reviews of 78 Amazon bestsellers across 8 categories at three levels of proximity to AI. Suspicion concentrates in Generative AI books (35.1%) but appears in every category, including Gardening (5.7%). Reviews citing AI authorship complain more about shallow content and poor presentation than other critical reviews. Suspicion takes two forms: ambient, where "AI-generated" is a generic complaint about formulaic writing, and corroborated, where reviewers of the same book independently cite concrete evidence. We propose two mechanisms by which suspicion arises: topical concentration, where a book's AI subject matter supplies vocabulary for quality complaints, and artifact detection, where readers notice ChatGPT-style formatting regardless of topic. Star ratings can hide this suspicion: the most-flagged book holds 4.1 stars while 50% of its critical reviews cite AI authorship.
Explore related subjects
Keep this discovery
Explore connections, maps & timelines
Victor Dibia. 2026-09-27. "Is This Book AI-Generated?" How Authorship Suspicion Manifests in Marketplace Reviews. https://arxiv.org/abs/2609.33950
Cite the original work for its findings. Save a collection to share your selection of sources.