Hi,

I'm looking for 3 or 4 good books on the topic of infinity, ideally aimed at an undergraduate or graduate mathematician and concerned with the "maths" rather than "physics" of infinity. Also I'd quite like a chapter or two to be devoted to Cantor and the continuum hypothesis. Can anyone recommend any? I've tried amazon without too much success; most popular science / maths books are understandably lacking on the technical side.

Thanks!