I bought this book to ensure that I knew what I was doing as my wife's birth partner - this book made sure I was prepared and nothing came as a suprise. My little daughter was born at home and I was able to support my wife to have a wonderful birth expereince - I lend my copy to all my friends - Dads-to-be: get this book!
It explains what's happening at every stage of the birth, what you should be doing, what your partner will be going through and feeling, what the support should be doing. It tells you what to pack, what to prepare at home for afterwards and made me feel in control (well, as much as you can be!).