We found out that the thing that all of the books we read had in common were that they all have been banned from libraries (not necessairly from all libraries). I read The Story of Babar which doesn't seem like it should be banned. I think that the reason it was banned might be because it inplies that after living in the city Babar is better that the other elephants and because two elephants died (Babar's mom and the king of elephants).