My Money One + Penny My Money One + Penny is a build-up from My Money One + One. This book introduces the concepts of budget, savings, and banking in a children-friendly manner. Through games, children are able to understand that every penny adds up in their bank account, which is fundamental in a budget. This book is a MUST HAVE for every parent who wants to teach their children the value of money; It is never too early to introduce fiscal responsibility to your children.