You.gov recently published the results of an online poll of 29,000 Americans about their book ownership. Over 90 percent of respondents own at least some printed books. Yet 45 percent of survey participants do not own any ebooks, suggesting they have never even tried the format. But the results suggest that will continue to change over time as well. Among people 18 to 44, the portion of people who don’t own ebooks drops to 33 percent. The share is highest among those 65 and over, at 60 percent.