E-books are not a new, or even recent, phenomenon. I encountered my first e-book no later than 1994 (although it might have been earlier) with Project Gutenberg, which was started by Michael Hart in 1971 when he started typing classic texts into his mainframe computer terminal. But the role of e-books has changed drastically in the past few years, and now more e-books are sold than hardcover books. Continue reading ...