I\'m hardly an authoritative source, but as I understand them glyphs and spells are two different but related things - a glyph is sort of like a magical lens to project a specific power, and are physical objects, while a spell is the power projected by a particular glyph or combination of glyphs when the character focuses mana through it/them. You can\'t put a physical object into a book except perhaps to hold the pages open or as a place marker, and it still takes up space even if you do.
- CD
