When I read the reviews I decided to get this book for my two children, aged 6 and 9. Like other readers I was impressed by the simple explanations for the checkmate patterns, and ended up reading it just as much as the kids!
The checkmate positions are presented in a very straightforward fashion, with diagrams and arrows to show the simple versions. Anyone, even a novice or a Dad, could learn from these. Then come the positions on the right-hand side of each page, which provide a real challenge. I would say that any intermediate level player - child or adult - will improve from reading this book.
I don't as a rule write reviews on Amazon, but we had so much fun with this book I wanted to recommend it to others.