Krauss's attempt at popularising Physics is a lot more thoughtful than most, but it suffers from the usual problem - it gets serious too quickly, and moves into the world of quantum mechanics when it shouldn't really.

As interesting as QM is, I'd rather leave it out of most popular accounts of Physics; I don't think even a basic knowledge is essential when one wants to learn something about the world we inhabit. Even relativity can be a bit of a push. There's a reason why most of these topics is left until university, you know. ( )