Susan Stiffelman, MFT is the bestselling author of Parenting with Presence and Parenting without Power Struggles. She is a licensed marriage and family therapist, a credentialed teacher, and the Huffington Post's weekly "Parent Coach" advice columnist. She lives in Malibu, Calif., where she is an aspiring banjo player, a determined tap dancer and an optimistic gardener. Visit her online at ParentingWithoutPowerStruggles.com. Printed with permission of New World Library, www.newworldlibrary.com.