Folio - a book (or manuscript) consisting of enormous sheets of paper folded in the middle to create two leaves or four webpages; "the primary folio of Shakespeare's plays" Paper produced from Wooden pulp became popular while in the early twentieth century, since it was cheaper than linen or abaca https://www.youtube.com/channel/UCTleG6-484F7WHZD0hAjRRw/channels