The Susie & Sam series is a charming collection of illustrated stories about the new events and first experiences that most young children will encounter in everyday life. In Susie & Sam Have a Wonderful Holiday the twins go to London with their parents, and enjoy going on a train, and a tube, staying in a hotel, seeing the Changing of the Guard at Buckingham Palace, and going to the Tower of London among other places. The story is presented in a helpful, positive and reassuring way with bright, fun pictures.