Even with sales of e-readers surging, only 10% of respondents said they had abandoned traditional books. More than half of them said most or all of the books they read are in printed form. The pleasure of reading endures in the digital age, even with its nearly boundless options for entertainment, according to data collected from 1,500 voters. More than 20% reported reading books for more than 10 hours a week. Owners of e-readers are more likely to read books, read more books and spend more hours each week in reading. About 4 in 10 said they devoured four or more books a month.