The Strange World of Quantum Mechanics
"...gives a clear account of Feynman's approach. At times this is quite compelling....If you are looking for an original account of Feynman's approach, I recommend this book."   Nature"Strange World is well-written, engaging, pared-down, precise and accurate on technical matters; it conveys the author's enthusiasm for the subject well, and is a product of careful thought and successful pedagogy."   American Journal of Physics