Did you know the BOOK?

I can't imagine a world where a book and the idea of a book does not exist. Mankind has used it for millennia in order to achieve the highest possible level of knowledge. Without it history, tradition, religion, philosophy, politics and in essence our whole history would have been very different to what it is. However, even its non existence in the future will result in a more and more electrical based knowledge, where everything is on-line, altering the way with which knowledge is passed down to the pupils and students at both school and university. Although this is currently evident through the existence and prevalence of the i-books (kindle), the smart phones etc. Lets hope that the platonic idea of a book, which exists in the world of ideas will also exist in our world for centuries to come.