We ordered this book when my son (3 years) was diagnosed. His older sister (6 years) needed help to understand the diagnosis, and this book was especially useful for this. We ordered it three days after the diagnosis so my daughter could immediately start to understand the new situation at home. It helped us also to learn how to explain diabetes to other children who visited our house. I fully recommend it - a very easy, clear explanation told in a setting (a friend's party) that every child can relate to.