This (and its first sequel) are the only MTG books I've read but for a while it was my favorite book of all time too. I reread it once later and still enjoyed it, though it has now been decidedly moved aside by some other works. It's also a work you might consider rationalist-lite in the sense of encouraging thought, experimentation, and invention over brute force, bravery, or many of the standard heroic traits in stories. It's not HPMOR and doesn't try to teach these traits to people, but at the very least it says that they're good things to have.