By way of example, a quarto (from Latin quartō, ablative form of quartus, fourth[51]) Traditionally was a book printed on sheets of paper folded in half twice, with the main fold at correct angles to the next, to make 4 leaves (or 8 web pages), Each individual leaf 1 fourth https://elliotuafls.bloguetechno.com/quotes-can-be-fun-for-anyone-62154129