A kids’ camp needs a team: someone with a flair for administration, another with a talent for drama; and don’t forget the cook, the minibus driver and a first aider! You rarely get all in the same person. It’s the same with children’s books.
You will often find that one title is educational, another has a better narrative, still another has good resources, but the next one has excellent application.
The topic I’ve been looking at recently is the apostle Paul, and is a case in point.