Positive Discipline: The First Three Years, Revised and Updated EditionBy: Jane Nelsen Ed. D., Cheryl Erwin MA, Roslyn Ann Duffy Series: Positive Discipline The celebrated Positive Discipline brand of parenting books presents the revised and updated third edition of their readable and practical guide to communicating boundaries to very young children and solving early discipline problems to set children up for success. Over the years millions of parents have used the amazingly effective strategies of Positive Discipline