As referenced in my Zatchbell Spell book Tutorial series, here are the PDFs of the spell book pages:
Each is intended to be printed double-sided on 11×17″ paper (flipped over the short edge so the tops of page 1 and page 2 are on the same paper edge).
I printed around 15 copies of each to form 15 little pamphlets that I sewed together. Page A Front is just for the first pamphlet and Page A Back is just for the last pamphlet, so there is a blank page at the front and end of the book to attach to the cover.
See the tutorials below for more information.
Zatchbell Spellbook Tutorials: