Our five-year projections assume a current market share of 0.5% for digital textbooks in the U.S., and an average yearly increase in sales growth of approximately 200%-150% over the next five years. We project that growth to taper to approximately 50%-30% annual growth for the ensuing five years (2015-2019).
Within the general publishing and education markets, the growth of digital textbook sales will be influenced by the following factors:
- Digital textbook and e-content pricing
- Availability of digital textbook content
- Advances in technology related specifically to digital textbooks
- Intensified focus on integration of textbook/instruction with student outcomes
- Increased growth of online learning
- Rise in open educational resources and their use
- Success of the iPad and the tablet form factor in general
- Increased sales of netbooks and the success of Chrome OS for netbooks
- Proliferation and continued popularity of e-reader devices and e-reader platforms
- Growth of the smartphone market
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Source
[http://blog.xplana.com/wp-content/uploads/2010/04/DigitalTextbooks_Report_04-19-10.pdf]