The first advantage of an online store is the stock. Physical brick-and-mortar stores are restricted by space limitations and budgets, but an online bookstore does not have these restrictions, and offers a huge variety of authors and titles, not only the popular ones but also the lesser known ones. You can find books on any genre at an online bookstore, be it fantasy, science fiction, cookery books or novellas. At a physical book store, finding an uncommon book may be difficult or ordering for a rare tome could take weeks for it to arrive, while the same book can easily be ordered online and delivered to your doorstep within a couple of days.