JANE NELSON, Ed.D., 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, M.A., 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 a 22-year-old 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, and lives and practices counseling in Seattle, WA.