Yaffa Liebermann was born and raised in Israel. She graduated with a degree in Physical Therapy in 1966 and moved to the United States with her husband and four children in 1986. With more than forty years of experience, Yaffa has worked in a variety of settings ranging from an acute hospital setting to in-home care. During years of working with adults and constantly reminding them to stand up straight, Yaffa began presenting the basics of correct posture to children in schools. She has been dreaming of writing a children's book on posture for twenty years and is grateful to co-author Livia Beasley, and illustrator Katie Sokolowski, for helping her materialize her dream.