Empty Book: User suffers a lot of the target's pain. 80%
Partly Full: User suffers the target's pain. 100%
Half Full: User suffers more pain than the target. 140%
Mostly Full: User suffers twice the pain of the target. 200%
Filled Book: User no longer suffers pain when healing.
Empty Book: Twice as weak as normal. +100%
Partly Full: Three times weaker than normal. +200%
Half Full: Four times weaker than normal. +300%
Mostly Full: Five times weaker than normal. +400%
Filled Book: No longer weakened by the shield. +0%
Empty Book: Shield is 2 meters in diameter.
Partly Full: 2.5-meter diameter. Shield can be reshaped in any way with the same area, but more bending makes the user weaker.
Half Full: 3-meter diameter. Shield can be placed twice as far away as normal (six feet), but the further the user is from the shield, the weaker the user is (outside of the 3-foot range).
Mostly Full: 3.5-meter diameter. Two shields can be placed, but the second doubles the weakness of the user.
Filled Book: Shields can now be placed anywhere, anyhow, and doesn't weaken the user. Infinite shields, infinite sizes, infinite placement possibilities.