The manual for mm9 is very brief and doesn't explain how the required skills benefit corresponding spells.
This is copied and pasted from http://games.carmen-wolters.com/index.php/magic-spells/magic-guide

Thanks to AngelEowyn who put it together, I simply pasted it here so it is more accessible, and so that if the page goes down the community will still have access to it.

As far as I know it was developed through in game experimenting, there may be some mistakes but I haven't noticed any yet.

I am looking at putting together a new and improved manual when I get the time. If any one has come across useful content similar to this please PM!

*Not posting, is there a character limit?