Does anyone know of any good magitech series that go into detail about how magic works and how it's used? I've always found the engineering aspect of magitech really interesting, and having a flexible magic system is cool. An example of the kinda thing I'm looking for is Eragon. Eragon never got into magitech, but the magic system was fairly well explained, enough so that I was disappointed when magitech was never established as a thing.