Shoddy guidebooks, promoted with deceptive reviews, have flooded Amazon in recent months. Their authors claim to be renowned travel writers.

But do they even exist?

The New York Times: The books are the result of a swirling mix of modern tools: A.I. apps that can produce text and fake portraits; websites with a seemingly endless array of stock photos and graphics; self-publishing platforms -- like Amazon's Kindle Direct Publishing -- with few guardrails against the use of A.I.; and the ability to solicit, purchase and post phony online reviews, which runs counter to Amazon's policies and may soon face increased regulation from the Federal Trade Commission. The use of these tools in tandem has allowed the books to rise near the top of Amazon search results and sometimes garner Amazon endorsements such as "#1 Travel Guide on Alaska." A recent Amazon search for the phrase "Paris Travel Guide 2023," for example, yielded dozens of guides with that exact title. One, whose author is listed as Stuart Hartley, boasts, ungrammatically, that it is "Everything you Need to Know Before Plan a Trip to Paris."

The book itself has no further information about the author or publisher. It also has no photographs or maps, though many of its competitors have art and photography easily traceable to stock-photo sites. More than 10 other guidebooks attributed to Stuart Hartley have appeared on Amazon in recent months that rely on the same cookie-cutter design and use similar promotional language. The Times also found similar books on a much broader range of topics, including cooking, programming, gardening, business, crafts, medicine, religion and mathematics, as well as self-help books and novels, among many other categories. Amazon declined to answer a series of detailed questions about the books.