About six months after passing hardcover books, Amazon says it now sells more Kindle books than paperbacks.
Amazon reports selling 115 e-books for every 100 paperbacks. It says it also sells three times as many Kindle books as hardcover books.
About six months after passing hardcover books, Amazon says it now sells more Kindle books than paperbacks.
Amazon reports selling 115 e-books for every 100 paperbacks. It says it also sells three times as many Kindle books as hardcover books.