JP's Grimoire of Magic

I have read many a fanfic with either no good magic system or the magic was just there. It made no sense. Why is there magic? Who discovered it? How does it work?

This "grimoire" is the solution to all of those questions. This is a public book for everyone to use. If you see this book, feel free to implement the history, works, and rules of magic into your story, or only use parts of it. That's the whole point. To improve others' stories with a good system of magic.