As the eBook Market trends diagram suggests, the global eBook market is expected to witness growth due to the increasing reach and convenience offered and gradually expected to replace traditional reading methods. A growing number of portable readable devices such as smartphones and tablets is expected to be the key growth factor for the global eBook market. As per the eBook market trends diagram, the number of eBooks purchased per year has tremendously increased in the last couple of years. At the same time, with 56 and 16 percent of the market share, Amazon and Apple are ruling the eBook market.