The two protagonists in the book series are Saanu and Banu. Saanu is about seven years old and Banu her brother is five. Every story is woven around them in a backdrop of their daily day to day activities and their experiences. The characters in the stories are carefully chosen so that they are not far from reality, for example, the characters are very ordinary looking with no extra air around them. They do not have any super powers or neither they are child prodigies.
The parents in the story are modern, liberal, educated and working, who are open to healthy arguments and never-ending questions, because they believe that thinking, arguing and asking questions is the real path to education. The parents are outlined in such a way that they set an example themselves in order to raise successful, independent and well- mannered children.