What is the most popular book being published with an innovative new “print-on-demand” technology? The answer might surprise you. It is the “The Art of Perfume,” an ancient book about how to manufacture perfume from natural herbs. In fact, according the YouTube clip below, many of the most popular books are old manuscripts. I find this absolutely fascinating because it highlights a counter-intuitive aspect of new technology and that is that new technology can often help us recapture old wisdom.