Trying to understand the deeper philosophical implications of quantum physics was pretty daunting back when I was a physics student. To try to write a book that explains just that for a lay reader is pretty ambitious, but Zeilinger almost pulls it off.

I say "almost" because he still sounds like a physics professor, and a lot of the book is about the details of physics experiments that will be kind of hard to follow for those with no previous exposure. On the other hand he succeeds in explaining Bell's Inequality quite nicely...first time I've really grasped why it matters.

If you have ever been curious about wave-particle duality, Heisenberg's Uncertainty Principle, quantum superposition (which is spooky enough), and quantum entanglement (which even Einstein thought was too spooky to be correct, but turns out to be quite real), but weren't quite ready to become a physics major, give this book a shot.