This is Book by Dr. Arun G Desphande, Gynecologist, teaching teen age girls and boys about puberty.

Book explains in easy to understand language to teen age boys, girls and also helps there parents how to talk about teen age issues to there child.

Currently the application has English and Marathi language in it and shortly would have Hindi and Gujrati languages built in it. Functionality to Text to speech is available that is app reads text for you.