Koans are a useful sign-post on the path to enlightenment. They reveal abstract Truth that cannot be expressed logically through presenting the reader with a paradox that can only be solved by shifting one's perspective.
The venerable Koans of the past, those that have been handed down through the generations are expressed in archaic language. If you cannot enter into that archaic language the koan is unlikely to bring you much benefit.
This book represents the Koans in modern language, accessible to all. It will not please the traditionalists, but it will make the wisdom contained therein accessible to a whole new generation of seeker.
Each koan encapsulates a profound truth for reflection. Zen counsels the lessening of the ego, not the strengthening of it as consumer culture would urge. Instead of making a name for ourselves in society, we should listen to the voice of pines and cedars when no wind stirs, in other words become no-thing, entering instead the field of pure being that is behind the phenomenal world.