I have enjoyed all the books I've read by Rob Parsons in the past, and this is no exception.
The only slight quibble I have is that he seems to be mostly speaking about teenagers, since most children younger than that are in the phase of spirituality which he calls "affiliative faith" -- that is, they follow along with you in your faith, though they may not have a faith which they can call their own yet.
While I think this is true, I also think it's never too early to read this book and take its advice on board.
He explains in clear, accessible language about different levels of faith in the first part of the book, which covers four chapters. This is then followed by five chapters about the pitfalls of modern life that can wreck a child's faith. He calls these "the big five", likening them to the "Big Five" game animals in Africa -- they are over-busyness, cynicism, hypocrisy, judgmentalism, and overfamiliarity.
I think this book is worth having just for this section alone!
The final part of the book is about the disappointments a child will face that could de-rail a burgeoning faith: disappointments in others, in themselves, and in God. I've seen this in my own child who sometimes doesn't understand why her prayers aren't answered. While I definitely agree that we need to explain this -- or at least try to -- I thought perhaps Parsons would have a better suggestion for his readers than just saying "sometimes we don't understand everything that God does." True, but doesn't that ring rather hollow? At least he then backs it up with scripture, such as Jesus's asking for the cup to pass from him, and yet accepting the cup when it doesn't.
Often when I read a book like this -- quickly and easily on a single train journey -- it's soon consigned to the pile from which I re-sell on Amazon as a used book. Not this one. I'm not giving it up, so you can't have mine!