This book is marvelous! It is very well written and it covers a wide range of situations with plenty of examples.
Jim Fay and Charles Fay, father and son, have founded a whole-child philosophy called Love&Logic and have published a few books and papers together. This one is probably the best, it is very concrete and very easy to assimilate. You don't need to read the whole book at once, it is well constructed so it is easy to find specific informations when needed.