Last month, I attended the London Book Fair and came home with new thoughts on the future of e-books. In particular, an in-booth presentation by DNL eBooks’ Peter Kent—author of many books including “SEO for Dummies” and “The Complete Idiot’s Guide to the Internet”—combined interesting statistics and Kent’s opinion on e-books’ future. Of course, Kent’s affiliation with DNL eBooks should be kept in mind, as the vendor provides a 3-D e-book technology (that incorporates Adobe Flash) through a software download for personal computers. (The technology was used in the Avon [a HarperCollins imprint] e-book release of “Lady Amelia’s Secret Lover,” which featured embedded video of the book’s author, Victoria Alexander.) Still, his presentation, “Digital Books: The Road Ahead,” was compelling.