The traditional book publishing business has been slow to respond to changes within the industry. The growing popularity of ebooks and digital self-publishing are threatening their business. For years, the major book publishers have effectively outsourced their innovation to companies like Amazon and Apple. In order to remain competitive, they must revisit their business model to create a lower-cost lower-overhead model that focuses on simplicity, convenience, and accessibility. This paper reviews how the technology behind ebooks has evolved since the 1970s and makes several recommendations as to how book publishers can respond to this disruptive innovation.