This book is not about diseases, growth and development, or immunizations. This book is about childhood behavior, rules to follow, discipline and punishment. The author feels that children learn mainly by mistakes. Let your child pay the consequences, not you. Show continuing love but dont bail him out of trouble. Love the child but not his misbehavior at the time. Parents nearly always set the example (good or bad) that their children follow (going to church, being responsible, but also smoking and drinking). The fruit does not fall far from the tree.