These books remind me of the episode in Friends where Phoebe (in song) teaches young kids real-life lessons that others are afraid to teach. Phoebe’s lessons were eventually censored so the kids sought Phoebe out to keep getting the truth.
Our social justice indoctrination camps (aka “schools”) don’t want our children to know principles of freedom, real economics, non-aggression or the Golden Rule that these books teach. The reason leftists hate the The Tuttle Twins is because it expands minds of all ages outside of the ever-shrinking Overton Window. In other words - discovering truth reduces their power.
If you’re on the fence, just order one book to get a taste of what it’s like escaping Plato’s cave.