This article identifies a supposed ebook “author” whose 887 different ebooks were all apparently cut-and-pasted directly from Wikipedia entries!
The “WikiFocus” series targets obscure niches with few competing ebooks, like Hello Kitty, Aquaman, or the comic strip Archie.
“Of the 887 ebooks, all but 10 earned terrible reviews, averaging one star or less,” this article notes, “or received no reviews at all.”
A typical review? “This ‘book’ is just a word for word copy of the Wikipedia page.”
(And a least one other “author” has attempt the same trick, trying to pass off a Wikipedia page about Charlie Sheen as an $18.95 biography!)