This book covers an area that other good go books don't: basic common sense of go. Rather than talking about attack, life and death, territory, it talks about things that a wise teacher might say to a student. It's definitely worth buying this book to learn those concepts that aren't talked about in most go books. The author makes the book very personal with even a few unrelated stories that are still interesting (like going to the movies as a child).
One of the things that really affected me was his talk about ladders. He says that everyone should go back to this and learn to work them out in their head, even when it means thinking 30 or so moves in advance. For the lazy (which includes most of us), he say's he'll grab us by the scruff of the neck and smack some sense into us showing that we CAN solve these things and not to try to rely on tricks or formulas.