Whether it’s because physical books have become a thing of beauty in their own right or simply because you can’t fold down the corner in your E-reader, after years of decline, it seems the humble book is making a resurgence. Given that we now live in a world of smartphones and tablets, this emerging trend seems a little backwards. Yet for businesses, the return of such products presents a huge opportunity to profit. The question is: how should businesses react to the comeback of these former heroes?