A Companion to Metaphysics (Blackwell Companions to Philosophy)
Jaegwon Kim, Ernest Sosa, Gary S. Rosenkrantz
I believe that this book is extremely valuable to both the beginning and the professional philosopher. The references are all clear and concise and break down the various metaphysical concepts in way that captures the complexity of the concept while at the time making them easy to understand. I would highly recommend this book to anyone who wants to metaphysics.
