> Worth a read just for the clearest description of differential geometry I’ve ever read (first ten pages). I don’t think you could learn it from the intro, but

> Worth a read just for the clearest description of differential geometry I’ve ever read (first ten pages). I don’t think you could learn it from the intro, but you can learn why you might want to know it if you have a “basic mathematical sophistication”. I'm going to read at least the first part because of this comment. Thanks.