Positive Discipline: The First Three Years, Revised and Updated Edition: From Infant to Toddler-Laying the Foundation for Raising a Capable, Confident Child

Jane Nelsen, EDD, coauthor of the bestselling Positive Discipline series, is a licensed marriage, family, and child therapist and an internationally known speaker. Her books have sold over 1.25 million copies.

Cheryl Erwin, MA, is a licensed marriage and family therapist in Reno, Nevada, and is the author or coauthor of nine books on parenting and family life. She is a popular speaker, trainer, and parenting radio personality, and is married and has an adult son.

Roslyn Ann Duffy founded and codirected the Learning Tree Montessori Childcare, and has written adult and children's texts, as well as the internationally circulated column, From a Parent's Perspective. She lectures and trains in numerous cultures, is a parent to four and besotted Grandma to three.

Vanessa Daniels has worked as a professional actress in theater, film, TV, commercials, and voice-over for almost two decades. She holds a BFA in drama from New York University and is a member of SAG-AFTRA and Actors' Equity Association.