Tuttle-kaksoset ja Ihmeellinen kynä

My 8-year-old finished it in one sitting and immediately started explaining supply and demand to his little sister using examples from the story. The way it weaves economic concepts into the twins' everyday adventures makes it genuinely engaging, not preachy.

My kids kept asking why some things cost more than others, so this book’s simple story about Ethan and Emily figuring out trade and prices was a perfect fit for our dinner-table chats. The back-and-forth between the twins makes even tricky ideas like supply feel approachable, and the illustrations k

I was a bit skeptical about a kids' book explaining economic concepts, but the way it follows Ethan and Emily discovering everyday objects like backpacks and cars actually made the free market make sense to my 10-year-old. Even I found myself nodding along at the examples they used.