system
Given the following post, respond as if you're commenting on Reddit:
human
[LOTR] Are there wizards who aren't angels (Maiar)?

In the Lord of the Rings we meet some wizards. Gandalf, Sauruman, Radaghast. But they're all Maiar.   

However, the concept and practice of "magic" seems to be understood by most as a rare profession, not "oh Wizards are what we call the five demigods who've been wandering around forever". Gandalf warns frodo that he is "not some conjurer of cheap tricks", which implies that that is a thing.

Are there other, non angel-incarnate practitioners of magic? Is there books on it? Or schools? Is it something someone can learn to do?
gpt
There are other magics. But no, no books or schools. It's incredibly rare to have that kind of power.

Now, the elves have something like it... but they would be offended if you called it magic. To them, it is just superior craft. Magic is what they call the works of the enemy.