|Other Retailer||Price Checked Time||Their Price in NZD||Our Price|
|Amazon UK||9 days ago||31.02||$14.11||You save $16.91|
|Amazon US||1 days ago||18.94||$14.11||You save $4.83|
Frank Caplan and Theresa Caplan were directors and editors of The Princeton Center for Infancy and Early Childhood, a self-supporting parent education group. The co-authors of many books together, they also founded Creative Playthings, a world-renowned educational toy manufacturing company. Frank Caplan died in 1988 and Theresa Caplan died in 2010.