Optimal for iPad 1 Children can help the animals activate their secret letters at the end of this eBook. This is the final step before the animals in the Sunmoona Pride reunite. The iKnow ABC enhanced eBook emphasizes alphabet principles and alliteration. Children discover when they do their best their contribution will make a difference. This version of the iKnow ABC eBook includes the original The iKnow ABC music video, the story told in rhyme, and the Read-to-Me feature, which is the same as in the enhanced version, but designed for the original iPad 1.