A real blast. No other beginner-level book in philosophy of physics provides such a synoptic view of the subject. But what really makes the book fun is Rickles' ability to convey how astonishing these physical puzzles are, in with an informal, witty voice. Craig Callender, University of California, San Diego A wonderfully insightful and refreshing approach to the philosophy of physics, Rickles' book lays out the philosophical issues in an extremely clear and highly absorbing way, taking the reader on a fascinating journey through the twists and turns that lie at the heart of modern physics. Highly recommended! Margaret Morrison, University of Toronto