NEW YORK (AP) - Authors Guild president and best-selling novelist Scott Turow is condemning Amazon.com's purchase of Goodreads, a leading book recommendation website. In a statement posted Friday on the Guild home page, Turow called the acquisition a "textbook example" of how a monopoly is built. Seattle-based Amazon.com Inc. announced Thursday that it had bought Goodreads, a favorite Internet stop for readers to review and discuss books. Founded in 2007 and based in San Francisco, Goodreads has 16 million subscribers. Goodreads co-founder Otis Chandler is defending the sale, which has set off a debate about Amazon's market power. In a blog posting Thursday on Goodreads, Chandler said that Goodreads would continue to operate independently and that Amazon's resources would help his company reach more readers.