The online economy expanded rapidly, propelled by popular mobile devices such as smart phones, tablets, and e-readers and the widespread use of Facebook, Twitter, and other social networks. Meanwhile... This description may be from another edition of this product.
ThriftBooks sells millions of used books at the lowest everyday prices. We personally assess every book's quality and offer rare, out-of-print treasures. We deliver the joy of reading in recyclable packaging with free standard shipping on US orders over $15. ThriftBooks.com. Read more. Spend less.