This volume offers much more than its title suggests. It's a great way into Melanie Klein's thought for those who haven't read her; and for those who have, it's an invaluable help for following the thread of her ideas as they developed and changed. The main entries are extremely useful as free-standing essays on the development and implications of Klein's principal concepts. Klein was an exciting analytic theorist, and this book brings readers directly into the current of her thought. I only wish it were in paperback.