Parents: Please check out the "eBooks for Kids" section of this website, on the left side of page, which lists other sources of eBooks which are not free but are generally inexpensive. Some of these services offer free trials or samples. The services generally offer larger selections of eBooks, quizzes, or other additional features.
and see if your local library or school district has an eBook service or is subscribed to a commercial eBook service that you can access at home with a library card or pass code.