First of all, for the price, you can get each of these character books so inexpensively. Second, they include the sin along with a prayer at the end of the book. Third, they are easily relatable for kids and they love them. Fourth, we own every single one and they work great with our kids. We have used these for about five years now. They work, people!!!
It's a small book , but at the price of $1.00, it's just what a person needs. You can carry them along in your purse or keep them in a place that is easily gotten to for when you are dealing with discipline.
When your child is whining, talking back, or not going to bed, pull out the appropriate book and read it to them. They get it and you are helping them work on their heart. These are a great purchase and I highly recommend them to all parents with young children ages 2-9.