In January, Walmart partnered with Japanese e-commerce giant Rakuten on online grocery in Japan, as well as the sale of audiobooks, e-books, and e-readers in the U.S. Today, Walmart is capitalizing on that relationship with the launch of a full e-book and audiobook catalog on Walmart.com, alongside its assortment of physical books.
Source: Walmart and Kobo launch Walmart eBooks, an online e-book and audiobook store