I am sure that books like this work for some kids and not for others... but I have to say that this book really has helped us teach our daughter good manners. We started reading it to her occasionally when she was too young to be worrying about manners (15 months or so), but kept it in the regular rotation. By the time she was over 2 and started to need to use some of these expressions, they were familiar. She loves the book and really enjoys it-- I am not really sure why, but it captures her attention and at 2.5yrs, she always says please, no thank-you, thanks, you're welcome, excuse me, and I'm sorry with hardly any prompting from us. I'm not saying she's a perfectly-mannered little angel, but she does a really good job trying to use her manners correctly!