Dip and Logo are challenging, inquisitive children who annoy babysitters with their constant spying. Their parents find it difficult to find babysitters who will put up with them and their moody baby brother. Supersitters is a graphic children's story which introduces social themes, including 'recognising and challenging stereotypes'. It introduces the concept of using evidence to support ideas and researching facts about reptiles.The story introduces the idea that babysitters (and other people) should not be judged by their appearance, but rather by how they behave.