I was keeping an eye out for these sales recently because I thought my kids would love these books. I finally bought "Apples", the first in the series to see if they would like them and we have been tearing through it... I love the way these books present information.
Has your family read them? For those of you interested in trying out Life of Fred, Educents has many of them on sale right now... I know many homeschool families love this series!