Spellbooks typically contain 50 pages of parchment that allow for 100 pages of content. A book this size weighs about 3 pounds. Spells require one page side per level (e.g. a 2nd level spell requires two pages). To transcribe a spell, a wizard must gather gold totaling the square of the level times one hundred. For example, a 3rd level spell would cost 900 gp in material. The process takes an hour per spell level.