Xaviera Plas-Plooij, mother of three and CEO of the Wonder Weeks, has one mission: to give parents the tools they need in order to fully understand their baby’s mental and emotional development. Daughter of Dr. Frans X. Plooij and Dr. Hetty van de Rijt, founding authors of The Wonder Weeks, Plas-Plooij has significantly revised and modernized the sixth edition of the book. THE WONDER WEEKS: A STRESS-FREE GUIDE TO YOUR BABY’S BEHAVIOR will be published by The Countryman Press on September 10, 2019. This award-winning book offers a refreshing new paradigm for parenting, one in which fussy phases can be viewed positively. In addition, she launched a bestselling app so parents can track the ten magical leaps that their baby makes, on a personalized schedule. As a writer, columnist, and popular speaker, she’s in 24/7 contact with parents around the globe. Plas-Plooij is a trusted member of the Lumi by Pampers Expert Advisory Panel. She lives with her husband and children in the Netherlands.