[Suggestion] Fanboy creepers that drops one of the books from a series x

Having one custom mob spawn exclusively those kinds of book and as I mentioned

It can just be 30% or heck 5% . Having a staff or contribution team write something about and have only like 3 months before it stops dropping it adds the value way more than those enchanted bows. As time goes, it gets slowly more expensive.
If just let it drop on all kinds of mobs, it doesn't mean the book drop rate needs to be 75% what I suggested at first. Let it be 3% or whatever % may it be.

If you seen creepers like I have, It would be easy to grind out getting each novel. My mind really hasn't changed about it. All the books would be the same due to the fact there would be SO MUCH to talk about a player. They are pre-registered drops.

The books could be randomly generated, I'm sure there is a [playername] variable possible. So the books can be all the same except the name of the player wouldn't be.

How would you know all books are about some player?
This fanboy creeper idea I have is one of the solution to fix being easy to grind it and its rarer than enraged creeper or minibosses spawn rate.

That is what I was referring to "pre-registered"