Explanation: What we were generally recognize as the physical form of a book in the modern day is formally called a codex - an invention of the 1st century AD Roman Empire that made reading and book storage much more efficient. Instead of a single sheet of paper that needed to be unraveled, smaller sheets were bound to a spine and protected with covers, progressing through the writing by turning the pages.

Stop living in the past! Embrace the F U T U R E!