The Wonder Weeks Milestone Guide: Your Baby's Development, Sleep and Crying explained
|Author:||Frans Plooij; Xaviera Plas-Plooij|
|Series:||The\Wonder Weeks Ser.|
Frans Plooij, Ph.D., and Xaviera Plas-Plooij are a father-daughter team. Dr. Frans has researched parent-baby interaction for more than 35 years. Xaviera is a Wonder Weeks expert and mother of three. Their child development books, available in 16 languages, have sold more than two million copies worldwide.