This book seemed to be well-written and a good presentation for my twin 5 year olds. However, shortly after reading this book, one of my children in conjunction with another child actually called 911 unbeknownst to us until the police officer showed up at the door. Thankfully he was quite understanding, but I'm still not sure if this book covered the importance of only calling 911 when necessary. I would definitely recommend it, but might want to have an additional discussion with your child after reading the book that calling 911 is serious and not something fun to do!