We've purchased the entire series for our 4 and 7 year old boys. Both really enjoy the books. The books teach great lessons about the role of government, laws and right choices. The way the books are written, make serious topics fun and easy to understand! Highly recommend!
Also, the individuals providing one stars and stating there are explicit scenes are trolls. There is nothing obscene in these books.
I cannot fathom how desperate a group has to be to go after and attack CHILDREN'S books. Quite sad.