Circle is the third book in the children’s shapes trilogy by Mac Barnett and Jon Klassen. The first two books in the series were Triangle and Square. One day friends Triangle and Square visited Circle. The three decided to play a game. Circle said she would close her eyes and the other two were to hide. They were allowed to hide anywhere except for behind Circle’s waterfall. Circle closed her eyes and when she opened them Square was standing in front of her. He pointed at the waterfall and said Triangle had hidden behind it. Circle was a little annoyed and went to find Triangle. In the dark cave behind the waterfall though it would seem that Triangle and Circle weren’t alone. Who or what could be waiting for them in the dark? The Shapes Trilogy of books have all been fun to read. They are a little unusual and the illustrations are a bit dark and not much happening but this is what makes the books stand out from the crowd. The story is interesting and different, I can see kids trying to guess who is hidden in the dark. It’s just a shame that the series is only a trilogy as I would have loved to read about many other shapes and their adventures.