"The Total Development Program books are fun to read and improve our knowledge!"
These books are really good, with clear language and lots of photos and images. I can easily find what I'm looking for, and once I read something it's difficult to forget. These books help me when I'm doing homework, sharpen my mind, are fun to read and improve our knowledge. They help us in many ways!
(Bhairava, India. July 2009)
"Walter provides additional information while other talking pens in the market just repeat the text on the page! Even if we are too busy to read to our son, he can still play and learn on his own." (Xiao Hui, Taiwan)